I can kinda relate. There was a period in my life (lasted about a month I think) when I was fully convinced we were living in hell and God was purposefully making us suffer. I saw absolutely everything in this reality as evil and I started to get really paranoid. I felt like evil entities were watching me and laughing at me from other dimensions. I had a mental breakdown back then and then I went back to normal
It can be really hard ngl. What helped me was my skepticism (we can't be 100% sure there's a god, and the evidence seems to tell us there's no purpose to life on this earth) and also my nihilistic attitude. But I'm not schizophrenic so it must be different for you I guess.