Lifes about to change big time....personal stories,help,advice?

Well let's start off with a little background info. I'm 17 female and live in a Christian home....my dads a minister. Many probably already have their umption about to what the problem is. Well. I'm gay. Ive always felt nothing for guys..i just went with it cause that's What i was taught what was right. But I've never really felt that way. Of course i feel guilt and can be a little depressed at times about this but that's another problem not as pressing as this one and I'm a strong enough person that I'm going to be ok. Anyways. I'm in love. I know what your thinking your young and foolish dont worry it'll p but this is no teen age bullshit...this is real. I love this young woman and she loves me. Luckily we go to a highschool Tht is very excepting of gay teens (students not teachers in general) so i can be open as i want. But at the same time she can't be because shes not ready for one and people Tht attend her church could find out (also i too have to be slightly carefully cause a few people from my church are also there)....some of are friends know and are completely supporting but as of now we still have to be secretive like we have been for the last year and a month we've been together. My problem is the future. We've talked about us together in the future and it just looks like it won't work...i love her too much to let her throw her life away for me. She would be completely hated by her family...as will part of mine. ( i realized overtime they might except me but it's not likely... It would be more like they would "tolerate me") how am I going to recover from the eminent heartbreak I'll have come end of senior year next year....how am I going to move on. I know u may think shes truly not in love with you if she's not willing to risk it all for you but don't knock her. Shes as much as love with me as I am her...she's cried alot over this situation, as have I, And basically hates herself for it....you see she's not really gay. She hardly bi. I'm like her one and only. Shes told me time and time again she wishes she could just be gay (which of course I tell her dont ever wish Tht on urself) but the flat out fact is she's not. So. Here we are. In a semi secreative relationship, young, and in a deep sincere love. What am I going to do...And some may say breakin up now may mean less heartache but I would rather have a thousand times more pain if it means shes mine for longer. As desperate and dramatic as it may sound it's true. Theres others things i could mention Tht are working against us but it would take to long to fully explain the whole damn long complicated but romantic story we have for ourselfs haha :/.....Were juniors now so the times ticking......any help or advice would be appreciated