My daughter is 16 and autistic. For some years now she's been toying with a non binary identity. I have not affirmed. I've talked to her about sex realism and how autistic people feel different and you can't change sex. I refused to use a different name or pronouns for her and explained why.
Yesterday she told me she's using a male name at college (I actually already knew this but she didn't know that I knew) and intends to go on hormones and have a double mastectomy when she's 18.
I'm distraught. I don't know what to do or if I can in fact do anything. She won't listen to me about sex reality, just says I'm unsupportive of her. I've explained that I'm not, that she wears what she wants and has her hair as she wants but that I won't support her in something that isn't true.
I feel like I've failed her. She's going to do irreversible damage to her body and there's nothing I can do to stop it.
I've told her I love her and that all I want is for her not to do anything permanent to herself but college are affirming and she's so closed to hearing anything she doesn't want to hear. I've told her we don't have to agree on things, and that it doesn't mean I don't love her. We are actually very close and she talks to me about most things except this.
I have read the books, I've been openly GC for years, I know all about the theory of this but I don't know what to do to stop my daughter harming herself.
I don't know where to turn.