I didn't have good role models and I turned out alright!!
Nope I donno who your talkin about..
I do know that not having a role model is just a excuse...I had to parents who were always intoxicated. We were lucky to get new clothes, or a birthday card..etc. All their extra time, and money went to supporting their habbit.
This is your life You have to deal with the cards you dealt. I tell you some good role model advise- If its illegal- its wrong, If you have to lie, cheat, steal, or fight its wrong. Go to school and graduate (having problems talk to your counselor, thats what thier for), get into a hobby. You like music right? Maybe playing a gituar or something. Can't afford it..excuses.. Make it happen(save or work harder).. also Get a job if you already don't have one this I think will help you with construtive critisism. If you still have alot of spare time.. look into volunteering at a local hospital, shelter, or with children who have specials needs. I think having a hobby will give you your space to vent and be yourself, volunteering could help you further your education(some offer scholarships for long time volunteers), you will probly find good candidates for a role model there also, and it might help you realize you don't have it that bad.
As far as your anger problems control it! In real life you get in a fight, you go to jail. You really hurt someone you might go to prison (the guys in there are not gonna be simpathetic for you either). Maybe find some new friends..and quit picking on other people their allowed to disagree.
hope that helps you...