Am I a pedophile? If not what am I?

As long as you don't act on it. You are fine. The fact that you are aware shows you not pedophile plus you are a minor. When your in your teenage years your hormones run wild. its pretty normal to be attracted to people who are younger. As long as you arent in adulthood and still attracted to 11-12 year olds its ok. No you are not. As for your second question, you sound like a normal 15 year old to me.