Plz help idk how to come out 😭

So me and my mom have a unstable relationship as it is. I fell like if I tell her I'm bi then she will kick me out she hate it thinks being lesbian or gay is a sin and completely believes in those gay caps I don't want her to hate me. I've told my aunt and she completely supports me and I've told some friends. The bad thing s we recently moved to Montana from Kansas where all of my family is so if she liked me out I wouldn't have a please to go exept my drugie friend and I don't really like to be around her dad he's a creep! Plz help

Btw I'm almost 16