Dear little brother,
At this point you've grown up some so you don't see yourself as my "little" brother, but that's always what you'll be to me. Over the years I've watched you grow up, learn new things, and develop into an incredible person. Through this time, I've also kept some things to myself, things I'd like to tell you now.
You're stronger than you know
I know you think you're strong, and you are, but there is still more strength to be found in you. The kind of strength that gets you through rough patches and gets you out of bed on those dark days. The kind of strength that allows you to open up and be vulnerable to people you trust. This is the strength that is rarely mentioned but critical to life.
Choose your battles
I know it's tempting to fight every one, to argue that you're right in every situation, but don't. There is a time and a place for everything. In time, you will learn which fights to concede, and which ones are worth fighting. Fighting all of them will just leave you exhausted and defensive, trust me.
You have greatness in you
Being the little brother isn't easy. I know that through the years I've picked on you but know this: I believe in you. You are incredibly talented in your own way, and I have no doubt that you'll find a way to be successful by using those talents.
You always have someone in your corner
While we may have bickered throughout our childhood, I will always be there for you. I will always be your protector, your cheerleader, your confidant. If you ever need me, just say the word and I'll be there. I may not say it very often but I love you and you mean the world to me. Remember that when we're in the middle of a fight.
My hope for you is that you see the mistakes I've made and learn from them. I hope you ask me about college and life so you don't have to figure it out like I did. I hope you see that you will always have a friend in me. All you have to do is ask.
Forever and always,
Your big sister