No amount of effort will ever be sufficient
I have come to the conclusion that in my case (not all cases), no amount of effort, discipline or commitment will ever be enough to adapt to the demands of society. The equation of energy output vs. energy input on a daily basis comes with a net loss. I believe negative symptoms is the direct consequence of a body and a mind that never get enough time to recover. When this goes on for years and years the void eventually consumes all your inner life.
Failing to function in society is not a moral failure, for some it is simply unevitable. Refusing to participate is at that point the only rational thing to do. The consequences may be harsh, but when participation slowly kills you either way there is nothing to lose really. It might actually work out, if not, well, exit is always an option.