I believe have a fair idea of the issues she is wrestling with. It is natural NOT to take care of yourself in any way if you hate your life, hate who you are, hate your body, etc.. Then you finally decide to do something for yourself. Something about and for your true self. Which lead to HRT, a boost to the brain chemistry, you feel better about you. You do more things for yourself, for life, for mind, body and spirit.
And then..... Hey, I got this trans thing beat. I FINALLY love being me, being me, I understand things so much better know. I can stop all this silliness, the meds, the docs, perhaps therapists.
Slowly and inexorably you fall back into that deep dark abyss. For me, stopping both E & the AA was a disaster. As was slacking off on E and stopping the AA. As was just stopping the AA.
Relying on the shear force of will only works so well for only so long