My mom keeps trying to gaslight me and she is saying I'm making up things to make her look bad.

I am honestly sick of this. Ever since I told that damn social worker that something bad happened to me, she's been completely unsupportive. It is so odd because my mom has always been supportive up until this point. She's mocked me by saying "yeah, and you've dated the elderly." or other horrid things like "You sold yourself to some man in Canada." or "You were old enough to know better." (I was 12-15) It was just crazy to me because I was hoping once she found out, I could feel more free. But now I'm too afraid to tell anyone. My friends have judged and mocked me, my therapist even shamed me, and especially my own mom. Whenever she sees things like a text, I sent to a friend talking about how she made me feel, she argues with me about how I apparently made up everything, or I am using it to lie to people about her. According to her, she never said any of those things and I am a maniac because how dare I lie about this. But the thing is, I'm not creative enough to make up "Dating the elderly" or "you sold yourself to some man in Canada". I just don't know how to go about this.