If you have schizophrenia and you’re having withdrawals this bad chances are you’re going to relaspe into psychosis, I’d say maybe at first try high doses of CBD it can act as a mild mood stabilizer and has anti psychotic properties too it that don’t cause anhedonia, you should also eat clean do plenty of intense exercise, exercise can help with psychosis as it’s a natural thing that stabilizes your mood, if that doesn’t work try some anti psychotic pills like zyprexa, prolixin, latuda or abilify they get out of your system fast so you don’t need to worry about it taking a long time to recover from it, just take them as needed only if you absolutely need it and the lowest dose possible try not too take it everyday unless you absolutely need too or else you can build dependance and get withdrawals from that.