Advice or help pls?!?!?

For a very long time i have felt hatred from people almost all my life and there would come times rarely when i would have a hand full of people who understand me and accept me for me and they are the people i seem to loose contact with. my mother and i kinda get along here and there but not much because im always in an argument or shes either yelling at me for something simple. Yes i have ADD/ADHD and maybe that's part of my problem also but now im in my teen years and i feel like i cant relate to much people because i have no friends , im paranoid about alot of things, im impulsive and many people have hurt me in my life and now i feel like i don't belong here and i feel like the mistake i am..:(