How do I talk to my parents & friends?

I am bi... which is a huge issue for my family (who doesn't know and wouldn't be supportive). I have been in the closest for 4 years, almost 5, and I have had no one to talk to/share this with. When I tried to tell someone I trusted, and they've never spoken to me since. They just sent me a bible verse, said they hope I "saw the right path" and were gone. My parents would either send me to talk with people at church or completely ignore me if I came out and confessed.

Because I haven't been able to share anything, I'm able to identify as bi, and it's really effected me with dating. Because I want to be with someone who knows the truth. Help, advice please?