You're the one who knows your mom best, so I understand your reluctance. I suggest preparing for the major options: (1) she accepts, and you're cool; (2) she wants to accept, but it's a rough transition; (3) she wigs out, and you need to find another place to lay your head at night. Your options depend a lot on your age and the support available from other family members and friends. My older daughter came out to me as gay/bi (she wasn't sure at the time) when she was a senior. I accepted it super easily ... so easily in fact, that she assumed I didn't really mean it. Now she is 23 and knows that I love her with my whole damned heart; she's the same little girl-now-young-woman that I've always loved, no matter who she loves. I hope your mom can find that same attitude. I'm glad to talk with you further if you like. I suggest honesty with your family as soon as you're ready for it; my understanding is that it feels great to be openly and authentically yourself, even if new problems arise because of it. Best wishes, hon. Sincerely.