I hate my life

Well it all started when i was about 7 my mom went to jail for lust and i started getting into pot at 12 but aroung that time i got caught shoplifting which put me through hell then a bne (breaking an entering) then it keeps getting worse. I have a scare on my back from when i was abused at the age of 5 but that bothers me no more last year i got knocked out from a choke hold by my dad then a couple days after that i got caught smoking pot on school grounds then i moved in with my sisters but after a few months i forgave my dad and now court is making me choose who to live with but thats not the worst part. I fell in love with a girl that was 13 and im 16. Is it wrong for a 16 year old boy to be with a 13 year old girl she was born in 2002 and me 2000? Anyway but some one called the cops on us for sopposedly doing sexual things behind a bowling ally and thats when i wanted to die!!! its been a week sence it happened but i cant get this feeling out i want to feel that scar on my back get remade i really wanted to kill myself when i seen her scared and tears rolling down her face as she sat in the cop car ive already cut my wrist and already had opprotunitys to end it all but i was a cowered but all i can think about is her and not knowing if she cut herself again aswell makes me more and more scared i know it sounds hippicritical or how ever that word is spelled but i told her to promis not to and putting her through that killed me inside i do t know what to do but feel like i must die so i dont go through future pain but i love her and she dosnt need that too i dont know what to do im so scared right now and i dont wanna fuck up anymore i just want it all to end every nigh i hope that some one breaks into my home and kills me!!!!! Im so sick of living