I wouldn’t say anything about your adhd. Is this women somewhat in charge of you? If she’s been there longer than you and in a way yes she is higher up than you then I would just try to please the shit out of her.
Sometimes that will make things better but sometimes nothing you do will help and she is just bullying you. If you know she isn’t going anywhere anytime soon maybe you should find a different job. It can be scary finding a new job it was for me but I was in a situation like how you discribed and it was unhealthy for me to stay. After I left I ended up finding a job where the people I worked with were much better