Hi, welcome to Health Boards. Must've been hard, dealing with OCD from such a young age!
I recently turned fourteen, but I was diagnosed about a year ago by my therapist; these days, I guess I'm handling it okay. My thoughts still bug me sometimes, and I get this frustrating feeling that no other person my age could actually get something like OCD; I told my closest friends about it, and my "best" friend told me to talk to her about it, cause she could understand, but I know for a fact that she wouldn't.
OCD is a bothersome condition that no one can understand if they don't actually have it inside their heads; and even then, it's not a very understandable problem, if you know what I mean... Sorry, I'm rambling, as always... Anyway, just wanted to say welcome and good luck!