i want to die.

i am a29years male,nothing exites me any more, i dont have any friends, i always thought about suiside,attemted few times but failed, my parents dont know it, i have quit my job,want to kill my self any how, i dont sleep now ,dont know whether i have insominia or not, but it doesnt mater anymore,its not that i havent fight it,, i am fighting it from past 3 or 4 years, but it beyond control now, i just want to kill myself  anyhow possible,plz dont give me crap shit, just tell me new and possible painfull ways of death.