How can I get my psychiatrist to actually help me

We’re not talking about meds, so moderators just let it be please.

I haven’t been able to find a psychiatrist or therapist or really anyone who works with me. Every time I go to my psychiatrist and explain my symptoms he just gaslights me and says that that is not a side effect so it can’t be happening. Like, legit when I told him that my teacher was commenting on my lack of cognitive function because I couldn’t answer basic questions or keep a train of thought going or answer the right question because I would forget it as I was talking, he told me that it’s not a thing so he doesn’t know what to say. Like dude, I don’t want you to say anything I want you to fix it.

Been off meds for over a month because I legit couldn’t do basic tasks and now I’m just dealing with the absolute nightmare of depression and mixed features and I don’t even trust that I could go to him to make it better because I don’t think he would believe me. And I don’t have the ability to fight for myself because I’m just trying not to break down sobbing.