Parents!!

I need some help... so I’m bisexual. I’m only 15. I have been for about a year or so. My parents don’t know. They told me a while ago if I come out liking girls that they will kick me out of the house. But I really like this one girl and I wanna try to get with her but I can’t bc of my parents bc I need a house. And my whole parents will disown me and take all the money away that they have kept all these years for me to go to college and help to get a house. What do I do!? Bc I really wanna start talking to this girl, but I also don’t want my family to disown me..