I'm so, so sorry that I'm not innocent anymore.
I'm sorry that I lie to your face more times than I can count in one day.
I'm sorry that we're only __ years old and I'm still the way I am.
I'm sorry that I yell at you and don't appreciate you sometimes.
I'm sorry you're the middle and the scapegoat and the one who gets in trouble.
I'm sorry for being a bossy big sister.
I'm sorry for getting good grades and making you look way worse than you actually are.
I'm sorry for not always being a good best friend.
I'm sorry for being stubborn and blunt.
BUT! I'm not sorry for not following your stupid rules.
I'm not sorry for acting like the person I am.
I'm not sorry for saying no.
I'm not sorry yelling at you when you laughed at me in my face.