Why do i bother i just want to die?

nothing is working out right. my parents kicked me out of my house because i was flunking school every subject and it sucks i dojn't know what to do i'm a nice kid but no one seems to care about me and no one helps i tell people to call me and cheer me up and they say they will but they lie and never do so now i'm here and i'm alone and i feel like crap and it sucks a lot i feel like someone kicked me in the and now they;'re laughing about it my best friend wants nothing to do with me and neiother does my ex-grirlfriend or any of my others exes they all say i'm a loser and whenecver i talk to any of them of wanting to kill myself they just laugh and say go ahead and do it we aren't goin to miss you then i cry and cry and i am sick of crying and feeling horrible all the time im a nice guy but no one wants to be my friend or care about me so now i have nowhere to go and no one to talk to i jkust want to kill myself how should i do it