I want to commit suicide.?

My girlfriend just left me we've dated for 6 and a half months now and it's killing me, i can't live without her. (i'm bi btw). also ive been suffering with severe depression for 4 years now, and have been cutting for 3 years and i just cant take it anymore. I can't take this **** and pain anymore, im in intensive therapy groups and one on one counseling and its great but i just cant deal with myself anymore. I want to die. Help.