is anyone there…

hi my name is steve….and ive been suicidal since i was 12…im 24 now going on to 25….now im having the hardest time to want to keep going…right now im fighting a rare cancer that the doctors dont even know how to fight and i just dont know how to handle it anymore…my girlfriend of seven years left me just as thing were getting worse…and it just keeps getting worse because no one fucking understands how i feel…people understand but your expected to move on and get past it…and i  just dont know how…is there anyone out there that i can talk to and might be able to help me…ever since my girlfriend left me thats when things got the worst and have just been going downhill from there…i dont feel like i got the proper closure…she cheated on me and i just feel like im not good enough for ANYBODY not even myself….i just feel like im a wasted and burden on everyone up to this point…please help…