Should i come out or wait?

Im gay as hell and dont know how to come out. Well im lesbian i used to be bi but boy dont interest me anymore. Not even the slightest anymore. Ive realized i like girls since 3rd grade and well now im a junior. I dont know how to come out. I dont know if i even should. Ill be disowned i know that for a fact and ill get kicked out not even joking im serious. Im just tired of not being able to get a gf and bring her back to my house because my family is nothing but homosexuals. Ill be disowned by all of them. I just want to exit the closet. Kind of tired of faking who i really am. I ant to be looked at the same but ik that will never happen. Is happiness to much to ask for? Should i wait or tell them even though i know ill be an outcast. I dont know what to do honestly. Im just tired of hiding.