My son (24) smokes a lot of weed and gas since he was about 15. He has started taking 'shrooms. According to his now ex-girlfriend, he only does them once in a while. She said maybe a couple times a month. I believe she's telling the truth. 

Three weeks ago my son had an episode that lasted possibly 10-12 days. Hearing voices, paranoia, and anxiety. He has had other symptoms of schizophrenia-delusional thinking, paranoia, anger, but this was his first episode. We took him to the hospital but they didn't admit him and sent him home with a dozen Clonazepam. 

After a lot of phone calls and my husband pulling some strings through his connections, we were able to get him admitted to a "whole health drug addiction and treatment program". I'm very worried that this isn't what he needs. Based on the amount and type of drugs he was doing, I'm not convinced he needs drug rehab. I'm worried that we should have done outpatient therapy for his mental health first. Am I in denial?