I wrote this book for my second son for his birthday. Here is the second chapter. You can read the first chapter here.  

My Son,

Let me tell you about Puberty, Emotions, and the Mastery of Self, because that is how you become a man.

Puberty is not a side issue. It is not a footnote in your life. It is a defining stage of your journey. Too often, young men are confused by the changes happening to them but are too embarrassed to ask the right questions. They pretend they understand. They laugh things off. They hide their confusion behind jokes.

I do not want you to do that.

I want to talk to you directly about this because when we name what you are experiencing, the mystery begins to disappear. And when the mystery disappears, fear loses its grip. That alone reduces the Notice Me syndrome. When you understand your growth, you do not have to overcompensate to hide insecurity.

What is happening to your body and your emotions right now is not strange.

It is design.

It is intentional.

It is growth unfolding.

You are not breaking down. You are building up.

You are Under Construction

In the next few years, your body will undergo a massive transformation. Your voice may deepen and crack. Let it. Hair will grow in new places. Your shoulders may widen. You may grow taller so quickly that your own limbs feel unfamiliar, almost like they belong to someone else. Your muscles will begin to develop a strength you did not have before.

You may feel powerful one day and completely insecure the next.

That is normal.

Think of your body as a building under renovation. There is scaffolding everywhere. Dust fills the air. It may look messy for a while, but something solid and strong is being formed underneath.

What you are going through is called puberty. The word puberty comes from the Latin word pubertatum, meaning age of maturity, and pubertas, meaning adult or signs of manhood. It stems from pubes, which originally referred to the groin or the appearance of hair in that area. The word itself was created to describe the visible signs that a boy is growing into a man.

There is nothing shameful about growth.

The Adult Upgrade

Think of puberty as a major system upgrade that you did not request and for which no manual was delivered. You are transitioning from Childhood 1.0 to Adulthood 2.0. The final result will be stronger, wiser, and more capable. But the installation process can feel confusing.

Your brain is now sending signals to your body to produce testosterone. This hormone is the fuel behind many of the changes you are noticing. It affects your muscles, your voice, your energy, and even your emotions.

Let us talk about what that looks like.

You may experience a growth spurt. Your bones can grow faster than your brain adjusts to your coordination. That is why you may feel clumsy at times. It is like being a new driver in a larger car. You will quickly outgrow clothes that fit you only months ago. You may even become as tall as, or taller than people older than you, perhaps even as tall as me.

Your voice will change because your larynx, your voice box, is growing. Your vocal cords are thickening. At times your voice may unexpectedly rise or drop. It may surprise you. Do not worry. Every man you admire once sounded uncertain too.

Hair will appear in places it did not exist before. On your face, under your arms, across your body. It may feel strange at first. It is simply your body moving toward maturity.

Your sweat glands will also change. You will notice that you smell stronger after activity. This is why your mum insists on showers after basketball practice or when you return from school. We could often sense you coming through the door before we saw you. Hygiene is no longer optional. It is part of responsibility.

Your skin may become oilier. Pimples may appear. They can be annoying. I remember facing the mirror myself during those years. I made the mistake of squeezing some before they were ready. That was painful and unnecessary. Be patient with your skin. It will settle as your body settles.

All of this is construction. Construction looks messy before it looks magnificent.

The Emotional Rewiring

It is not only your body changing. Your brain is also developing rapidly. The emotional centers of your brain are growing quickly, while the part responsible for impulse control and long term thinking is still maturing. That imbalance can make your feelings feel bigger than they used to be.

You may experience mood swings. One moment you feel calm. The next you feel irritated for reasons you cannot explain. This does not mean you are unstable. It means your internal system is recalibrating.

You may also experience what I call the invisibility illusion. You begin to overanalyse everything.

Did I say that strangely?
Are they laughing at me?
Is everyone noticing how I look today?

You may be paying more attention to your looks and also what you think others are thinking about you. You will begin to be self-conscious.

Here is a truth that will calm you. Most people are too busy worrying about themselves to focus on you as much as you think. They are asking the same questions about themselves.

You may crave privacy more than before. You may want to close your door and think. That is healthy. You are forming your own identity. Just do not isolate yourself completely. Privacy builds independence. Isolation builds confusion.

Talk to us. I’m here, and so is your Mum. Uncle Chima, Chubiyo and other grown ups around you may have the answers you are looking for. Ask questions. Silence does not equal strength.

Attraction and the Awkward Moments

There will come a day when something shifts in how you see girls. One day, girls are just the people you sit next to in class, or even play with in church; the next day, it’s like someone turned the saturation up on a TV. One day they are classmates. The next day they seem different. You begin noticing how they laugh. How they speak. How they look. Their own bodily changes too. It may feel like someone adjusted the brightness and colour of the world.

This is attraction. It is natural. It is part of maturity.

Your brain releases chemicals like dopamine that create feelings of excitement and anticipation. Combined with testosterone, these emotions can feel intense. You may experience physical reactions at inconvenient times. It may happen before standing in class or walking across a room.

It is biology.

Every boy your age is navigating the same experience whether he admits it or not.

You might feel like you’re walking on air when a girl talks to you, and then feel like the world is ending if she doesn’t text back. You don’t even understand why you’re that attracted to her, even. You are ready to help her with anything she asks, and even share anything you have with her. When she’s around, you are self-conscious and want to do everything perfectly. This does not make you foolish. It makes you human.

Just remember that feelings are powerful but they are not commands. You do not have to act on every emotion.

Relating Without Pressure

As these feelings grow, you may feel pressure from friends or media to act older than you are. You may hear conversations about sex or relationships that make you feel behind. You may think becoming someone’s special boyfriend will prove your maturity, that you will be cool if you have a girlfriend.

It will not.

You do not need physical experience to prove manhood.

Real strength is the ability to wait.

You don’t need to worry about sex or “doing stuff” to prove you’re a man. In fact, a real man is someone who has the confidence to wait until he’s older and more mature. You don’t have to do those things to prove yourself. You’re already man enough. You do not have the emotional maturity to handle those things just yet.

The best way to relate to girls is simple. Treat them as human beings. Talk. Laugh. Study together. Keep things light and respectful. They are going through their own version of this transformation and may be just as uncertain as you.

There is no rush.

You do not yet have the emotional maturity required to carry the weight of sexual decisions. That is not an insult. It is wisdom. The ability to delay gratification is a mark of strength.

Keep relationships simple. Simplicity protects your focus. It guards your heart from unnecessary confusion and pain.

Talk to girls like they’re normal human beings, because they are. They are going through their own version of this “upgrade” and are probably just as nervous as you are.

Proverbs 25 verse 28 says that a person without self control is like a city whose walls are broken down.

Imagine a city without walls in ancient times. Anyone could enter. Anyone could destroy. Walls were protection. Walls represented discipline. A proof of your strength is your discipline.

Attraction is like fire. Inside a controlled space, it warms and nourishes. Outside boundaries, it destroys.

Note these:

First, do not compare timelines. Some boys will mature earlier. Others later. Some guys in your class will look like they’re 25 already; others won’t start for two years. Your body has its own clock. You are neither ahead nor behind. Growth is personal.

Second, be a class act. Treat girls with respect. Treat boys with respect. Kindness sets you apart more than appearance ever will. A good listener is rare. A respectful young man is memorable. If you’re a good listener and a kind person, you’re already ahead of 90% of other guys.

Third, ask the questions you think are foolish. I’ve been through the exact same “upgrade,” and I promise there is nothing you can say that I haven’t dealt with myself. Silence creates myths. Conversation builds clarity.

The Bottom Line

Being 13 is like being a “beta version” of a video game. There are going to be glitches, the graphics might look a little wonky, and sometimes the controls don’t work right. But here’s the most important thing: it means your body is working exactly how it’s supposed to.

Maturity is learning to lead your emotions rather than being led by them.

Grow Like Jesus

Even Jesus Christ experienced growth. He did not appear as a fully formed adult leader. The Gospel of Luke tells us in chapter two verse fifty two, And Jesus grew in wisdom and stature, and in favour with God and man.

He grew in wisdom, which is mental development.
He grew in stature, which is physical development.
He grew in favour with God, which is spiritual growth.
He grew in favour with man, which is social growth.

If the Saviour respected the process of development, you must respect it too.

Your mental development is important. I discussed it in the next chapter part of this book.

Your physical development requires you taking your basketball practice seriously, and generally working on your stamina and strength, so that as you increase in muscle and bone mass, you’re also increasing in  physical strength. Growing up is natural, but increasing in physical strength is intentional.

I also talked about how you can increase in your spiritual growth in the last part of this book, so I will skip it for now.

Growing in favour with men is also something you do intentionally. Being socially responsible is a conscious effort. You know I always talk to you and your brother about good neighbourliness. Treating other people with respect, dignity and honour does not reduce you, rather, it increases your goodwill. An obedient child will always get the favour of adults. A kind person will reap the reward of kindness.

Growth is not weakness. Growth is obedience to design.

Self control is not weakness. It is strength under direction.

Your changing body does not define you. Your emotions do not command you. Your impulses are not your identity. Mastery of self is the true mark of manhood.

Self-control is not a sign of weakness; it is the ultimate sign of strength. It is Mastery. Your changing body does not define you. Your emotions do not control you. Your impulses are not your identity. You are learning to be the master of yourself, and that mastery is the true mark of manhood.

Remember the story of Joseph when he was in Potiphar’s house. He showed his strength by choosing not to do what was wrong. He exercised self-control and discipline. That is the epitome of man’s strength, to be able to put it under control.

Here is wisdom for you: A man who cannot lead himself can never lead others.

The Blueprint
Look at the four areas in Luke chapter two verse fifty two. Mental. Physical. Spiritual. Social. Which one is growing the fastest right now? Which one needs more intentional effort?

The Wall Check
Identify one impulse this week that needs stronger walls. It may be your temper. It may be your phone use. It may be careless words. Choose one area and practice discipline in it for seven days.

Small disciplines create strong men.

And strong men build safe futures.

Oluwaseyi Ige is a media consultant, communication strategist, and the Chief Operating Officer of Jabbok Media Services. An associate pastor at TBC Kubwa and a youth missionary, he previously served as the Media and Communications Coordinator for Youth for Christ (YFC) Nigeria. He is the founder of Quantum of Grace, an outreach ministry, and the author of Still Becoming and Digital Loneliness. His latest work, Becoming You, is a personal guide helping the next generation navigate the identity fight and build a life of impact.

I wrote this book for my second son for his birthday. Here is the second chapter. You can read the first chapter here.