Here’s my advice on how to really and actually quit: make the decision to quit, and keep making that decision. Every time you feel yourself thinking “just one more…” remake that decision to quit. This was the only way I was successful. Keep making that decision and keep reminding yourself about your decision. You can do it.
I think this is an important part of the answer i don’t see mentioned much. Lots of good answers that seem right to me, amd i think also because trans people are such a tiny part of the population, they are politically not very strong. Bullies always pick on those weaker.