how do you tell your family your bi when there super conservitive

hi everyone, first of all my life is super complex and full of craziness and after dealing with it for a long time i have accepted that i am bi. that said acceptance i have a major problem and that is telling my family. first of all i have a background of being abused by my natural father and verbally by my step-dad,after my mom got my sister and i from my natural father who after a lot of abuse left me with seizures my step-dad adopted me and when i was unable to be the perfect sports playing all American son he wanted things started to get bad, i was interested in plants and nature and making things because i knew i could not be the star quarterback and as time went on by the time i was 12 i was constantly being torn down and completely emasculated with lots of depression and books were my only solace. this went on until i went to college when i went to a christian college that my parents wanted me to attend and i went because it was the only way to escape home.
i need to clear something about my family my family is very religious all of us are Christians and baptist. my mom writes christian curriculum for church's and my dad is a pastor. i am quite aware what the bible has to say about being gay and i am sure the same apply's to guys who are bi. its something i have struggled with however i will not give up my faith but at the same time i know i have to deal with being bi and before i can think about dating a guy i have to come out to my family because i live in a very small town and it will be better to hear it from me then to find out from someone who saw us dating. to be clear i am attracted to both girls and guys however i am only attracted a small fraction of either group, girls in the past have used me and reject me because i am like there brother or what ever reason and to be honest to only experience i have with guys is hooking up a few times with random guys and a couple platonic bromances past that lots of porn because i cant really act on the feelings without getting caught. my sisters i think would be ok with it but i am not sure. i have gay friends in fact my best friend just married his partner and i guess that makes getting to this point easier, i have a few friends that would be totally ok with my being bi but alot would not and i fear both of my parents would disown me because my dad is intensely homophobic and will not talk to his niece who is a lesbian, and my mom is to a degree much less so then my dad but still the reaction would be bad. family is very important to me but being bi and not being able to act on attraction is eating away at me, i am still fairly young and i look pretty good, so if i am going to do this i need to get on it.to complicate matters even more i have a roommate that is abusive and very homophobic. i would get rid of him but he is on the lease and while i am not completely sure i think he is in the same boat because he invited me to sleep with him on the first night we moved in together and basically acts like he wants me to be his partner without sex, he never mentioned sex but alot of the way he acts kind of leads me and my friends to think he was wanting a down low roommate with benefits and when i wasn't that he got mad and abusive.to be honest had he told me thats what he wanted i would have done it, he has a perfect body and i would so fool around with him, but since he has gone to crazytown and is abusive even if he tried to start something i would have to reject him because i cant trust him that it would stay between us. which honestly is a shame because like i said amazing body but anyhow i digress. can i please get some advice on how to tell my family and any other advice would be great, i am super frustrated by all of this