I managed to read all of your post but not the reply’s. I understand you circumstances totally & feel for you especially since you found out recently as an adult.
You need to be in a position (another job to fall back on ) where you can tell them “F’ it” before taking any action along the discrimination road.
Every industry is small and know body has your back in the workplace today.
I found it easier to deal with criticism before I knew I had ADHD. Now I Find I use it as an excuse in my own head first for rejection & not that I may have a problem in that area.
Good luck with your decision & make sure it’s your decision that you end up taking & not the advice from friends who only care for your feelings & not the reality of what people with Adhd go through.👌🍻. Good luck