My friend who's been in psychosis for a year and a half now, and may have schizophrenia (we can't get her to see any doctors), was doing a lot of "microdosing" mushrooms, acid, ecstasy, and plenty of macrodosing too. I think there's a very likely chance this contributed to her falling into psychosis (along with menopause and the stress/idleness of losing her job).
Could equally be the case that these were coping mechanisms she was using to try to accommodate her early symptoms. The classic addiction story is that at the root of problematic alcohol or drug use there's serious trauma - frequently sexual abuse, early life neglect etc. While these things aggregate (losing her job etc), there could be a common root.
