How do i get my family to accept me?

well i came out of the closet after my mom got a call from my school saying i was getting to close with my boyfriend and it was PDA (im 16) and i she forced me to break up with him... so for a month i was out of the closet but my parents would read bible versus at me and try to cast out "the gay demons" it doesnt make ANY sense ive done nothing but good to them so i started smoking weed and getting in to drugs alchahol anything that would mask the pain and make me feel absolutely omotionless tduring the time i was out they did nothing but insult me SO i HAD to go back in the closet ya thats right i had to go back to step one JUST so i didnt feel disguisting and they didnt have to hate me and aswell as that i had to pretend to become a christian becuase if im not a christian they dont like me either soooooo basically i have to pretend to be a christian gay hater and i have to pretend to be straight... and they CONSTANTLY talk badly about gays infront of me purposely making me feeel soo sick HOW do i get them to accept me for who i am or will i just be doomed and an outcast from my family for the rest of my life i already plan on running away to California first thing i when i turn 18 just because of them and i know some cute boy in cali too so that helps but im not sure if i can be preached at everyday about how evil gays are im afraid im gonna snap and knock somebody out...