You said you may have PTSD from terrible teen yrs, was that because of treatment by your family? Are they any different now than before? Unfortunately people can be very judgmental and there’s not much we can do to change then. Do you have a good psychiatrist or Psychopharmacologist to work with for your anxiety?
Why did you move home? Ultimately you can only control you and your reactions to things. We do not control others. Our perceptions of what family life should be etc. is often far from the truth. Each person has the gift to choose how they react to someone, something, to emotions, even our own, no matter what. If you choose not to participate in highly emotional exchanges with your family there won’t be any because it takes two to argue or disagree. Do what you feel is best for you, quietly, calmly.
Without knowing much more detail about your situation it is very difficult to know what would work and what won’t.
I hope you work things out and succeed!