I’m not good at giving advice – probably worse at giving comfort – but all I can say is that you have nothing to feel ashamed of. Your sexuality isn’t evil and isn’t harmful; the fundamentalist strain of Christianity you’ve been reared in is.

If you aren’t already, do some research on other strains of Christianity – moderate, progressive, and liberal. Read their blogs/literature and, if you can, correspond with mod/prog/lib Christians; learn what their interpretations of the Bible and its teachings are. Get a robust understanding of Christianity; don’t default to the fundies’ narrow POV.