ABUSE HELP?

My parents verbally abuse me I'm sick and tired of it. I'm 16. NO NEGATIVITY. i have a boyfriend who just graduated as a marine and my dads x girlfriend and we are good friends and my dad too but I'm thinking about emancipation in miami fl. look when i try my best they only talk **** about the faults. they call me whale then they say just kidding.. so just kidding when I'm vomiting.. i don't think I'm kidding.. and my dad has hate on everyone and talks **** about my boyfriend. he's nice sweet a marine kind loyal and more. My mom dad grandma calls me idiot yells for no reason calls me stupid.. no success and everything i do is wrong. they never see the good. theres more.. I've been in this depression since 5th grade now I'm in 10th grade.. I've cut, vomit, scratch,slapped my self because i feel worthless. I'm ****. my bf came back from training and i only saw him once but he keeps me happy and he makes me stop depression, he fills my heart with joy <3 he's kind he cares for my health and school grades. i just can't no more! i was an accident! I've been told! how do i emancipate! don't send me link just tell me!