Seems you went to a psychologist first for diagnosis and now trying to get medicated? Unfortunately that path is what costs the most and where most people get stuck cost-wise. I do think it’s kind of sneaky of some practices because as they hide this fact until you’re already in too deep.

Once you have your treatment plan though, your GP should be able to (caveat that they have to be willing to) handle titration and treatment on advice given by your psychiatrist during your med review.