(i hate my life) What do i do?

i hate my life, i dont get along well with girls, and ive been stalked by three guys and im only 15, i'm tomboy, and dress the part. im always being told that im ugly and stupid so my veiw of myself has gone down so much, I've had a good childhood till my parents divorced, when i moved home i was going to a new school where i was picked on everyday for years, that has stopped, a little. i was recently harassed by a guy who i very rarely hang out with, my friend told me that he has this phone tracker app and he was tracking me wherever i went. i dont talk out my problems because its so stupid, i miss my dad who i only get to see for a few weeks every other year along with my brother and i have no talents or skills. i'm suspicious of all my friends secretly hating me, so whenever i think they've gotten sick of me i hang out with a different group of people. im really paranoid about so many things, my imagination gets the best of me so when i turn off the lights at night i'll close my eyes and i wont open them in fear that someones face will be less that three centimeters away from my face. my mother and me always get in fights and i've been thinking of suicide, i've tried it once but failed as you can tell, i wont try it again because four people i know also tried to kill themselves but failed so to avoid liver or kidney failure i havent tried since, i dont know an easy way to end it, and i always think i'll fail so even when i get the chance i dont take it, i'm not scared of death but the odds of a successfull suicide are against me. im always getting sick and being taken to the doctors where they put me on medication for weeks, my mother wants to get my tonsills taken out which are always swollen, but i refuse because im scared of the pain. my life sucks and i hate myself, anyone got any tips to make this shithole we call life any better?