@Hank25
What @DogMan79 said is true, and some of the ones that don’t specialise but take you on anyway make you feel like you have to justify your diagnosis in every statement you make, or they invalidate all your experiences.
There’s also no specific medication; you’ll be treated with the same medications as if you didn’t have that diagnosis but instead have psychosis, schizophrenia, anxiety, etc. and it’ll take a while to find something that works. Actually, it’ll take a while to find what ‘something that works’ even looks like because you’re always gonna have those alters and it’ll be a deeply personal journey for you to figure out what your ‘normal’ will look like, however you might be medicated or treated.
On the up side, it’s good to be able to gain access to specialists who understand better and have tools at their disposal that are more tailored to what you need, at a cost.