My mom is a drugie/whore?

so im 16 and my mom has had 3 husbands and many boyfriends she brings home a different guy every night, and she is almost always drunk or on weed or other drugs. she has told me im a walking talking mistake and that she never wanted me and that she wanted then an abortion etc. then a few weeks later she pretends it never happened she never apologizes or anything.. no one in my family tries to stick up for me... what do i do???