Coming Out

I’m fifteen, I know because a huge weight was lifted off my shoulders when I finally told my friends i was I to girls, and sadly one of my close friends. The plan is to tell my mom when I turn eighteen so if she does kick me out I can leave and be on my own. But it’s much more complicated than just being kicked out. I’m extremely worried my poor grandmother wont understand me and won’t want to accept me and send me to talk to a priest.