Damn dude that kinda sucks. I was personally on a big dosage of risperidone for some rough 5 months and it was hell on earth. If you are still taking seroquel I would strongly advice you into tappering slowly, if not - that was a bad move to quit cold turkey lol.
Centering on lowering brain inflammation, or inflammation in general, and using a dopamine agonist which preferably is natural helps a lot.