Im 12 I Feel So Depressed! :(?

Hi, Im 12 and i fell like just letting my world come to an end, but in 2 scared to do so, i probally never will because i dont want my parents to be sad and leave my sister alone. but i try to make myself fell like i love my life but, i know its a lie, because i would say i have loads of friends but... i dont really think that they are good friends. i try to b cool and do everything right but someone still taunts me about somthing about me. but my parents dont really listen to me when i tell them neither dose my "friends" and i dont really wanna talk to someone in school, so i dont know what to do. i usually cry a lot, without knowing why then making up a reason and just let all the tears out. but every time i feel really down, suicide is just a way out of this misery. :(