Is this guy a psychiatrist? He sounds like he has no idea what he's doing which is why I'm asking. You say you don't want to change again but tbh this guy sounds like the worst.

You need to be assertive with him about what your needs are. Maybe try telling him that your quality of life is being affected by not having meds/not having the right meds. He needs to do his job and right now he isn't. If he says he doesn't want to change your meds, challenge him. Ask him why when he said last time he would. Get him to explain his reasoning beyond the locked up bullcrap. In fact if he does say that I would suggest saying something like "so you're not going to do anything until it's too late and I'm even more sick than I am now?". If he keeps denying a med change then ask him what your options are. Keep bugging the crap outta him with questions.

hearing this kinda treatment of patients makes me so mad, I really feel you on this one.