Many of those things are things that I dealt with at your age. I was considered an alcoholic. Lost my friends durin and after hs due to my anger and self esteem issues. I still work on some of those things today. As sewarrats said. You are at a great place to reinvent yourself as you enter college. Take some anger management classes. Maybe there are some online (?) talk to a therapist or maybe you need a peer mentor instead. If the school has a psychology dept or even if they don't they can probably hook you up with someone. You will probably continue to make mistakes for a while. Be easy on yourself as you learn. The first step is recognizing what needs to change