My Dearest Brother,
I don't tell you this enough, or at all even, but I am so proud of you. Every time I look back on the life you have lived so far, I am blown away by how amazing you have been.
You weren't always so nice, to me anyway. You used to pick on me so much as kids. After all, I was "just" your "little sister." But as we grew up, and moved countries, you and I have become a lot more like best friends. I think this relationship came as you begin to mature into the wonderful adult you are today, but I also think it came from having only each other in those few short years in England. I mean, yes we had Mom and Dad, but they were parents and we couldn't talk to them like we talked to each other.
I remember the nights when we had company over, so we had to share my room, and we would stay up so late talking until we got in trouble. I especially remember the time when our parents friend's stayed over and you broke my mirror on my head. To be fair it was an accident and my hair is so fluffy and thick there was no damage; just a lot of glass in my hair and on my floor. Regardless of times like that, we have grown close and now we're like best friends. I know I can always count on you to be there for me when I need you, just as I will always be there for you when you need me.
Back on topic though, you have grown into an amazing person. You are smart and kind to everyone you meet. All of the people who have met you, compliment your intelligence and abilities; you always go above and beyond on what you need to do and you're modest about your work.
If you don't believe me, look at how much you have done in your life. You own our house, you're a published author, you have job opportunities coming out of your ears, you're doing well in university and you've even been in the university newspaper in your first week of school! Not many people, myself included, can say they've done any of those things.
I know I get jealous sometimes, and I get mad at you for no reason, but sometimes I just feel so small next to you. You never make me feel that way though. You are such a kind person you build me up to do better, to be more like you, rather than to be better than you. You never put me down, and always made sure I was okay. As much as it was awkward, you even comforted me when I was crying too.
I could go on, but this letter is so long already. So in short, you are such a wonderful person, and I'm proud of you.
Your kid sister :P