LOTS OF POINTS PLEASE ANSWER!!!!!!?

Okay well i'm a twelve year old girl and have lots of stress and my mom got out of jail when i was in third grade she broke into the neighbors house on drugs now she is clean (i'm in 6th grade now) and stress in school and i am also bi and my friend is gay (we aren't going out) but we are constantly teased everyday and the teachers have tried to help but it is two ruff and we both still have a few friend but still it is hard and i have had an eating disorder for about three months but now i have started eating again and well this guy i like likes my gay friend and he already knows she is gay and i now have this urge to cut myself and i cant stop it i have held a knife against my arm and pushed hard and it felt good but now i want to do it again but am scared my parents will find out they are both therapists and work with severely messes up people but i still cant talk to them and i know this is very very long but i still appreciate that you have read all of this and i really need an answer so please help.