Not sure if this is the right sub but here goes. Someone close to me has schizoaffective disorder. It first showed up about 8 years ago, he's 25 now. He lives in a group home where he spends his time smoking,  drinking or in his room. He barely responds to stimuli and shows no interest in anything (besides smoking and drinking).  He can't have a conversation, he just stares into space, barely replying. He rarely showers or changes his clothes. It looks like he doesn't feel joy. He's on meds that supposedly help with the auditory hallucinations but don't help with the depression. He's tried so many different drugs, hospitals, therapists, nothing's helped. 

If anyone has experience with something that helped this severe mental illness, it would be a big help to hear it. We're desperate.