What to do..

Hello. I’m 15 going on 16 and I have been cutting for about a year. All my friends know and they didnt help besides making me promise to stop, but they didnt know that all their drama and treating me like crap was the reason. I broke every promise and i  stopped over the summer and then started right back up when school started again. I have been able to hide it from my family, but my boyfriend does it too and every one of my friends did it in the past. I dont know how to stay away from all the drama at school and at home and finally get the courage to tell my family. Im tired of all the stuff around me and have seriously considered suicide. 2 seniors in the past year have committed suicide and it stays with you, you know?