My experience has been that with proper set and setting, I got months of relief from a good psychedelic experience. Shrooms. My first mushroom trip I had tears streaming down my face for something like two hours- but there was such profound relief along with it, like I was feeling and letting go of decades of the sorts of things that get a person a complex trauma diagnosis.
I’ve tried LSD; it was more cerebral whereas shrooms had a more emotional component. LSD didn’t provide that sort of relief. But the visuals were stunning (which, while newt to experience, isn’t what I was hoping for).
Also tried ketamine sessions at my primary care dr’s office. Did not like it; during the trip, which seemed to have a duration of eternity, I was a disembodied consciousness considering my life. I could genuinely see this as being somewhere between disconcerting and alarming as hell to a first -timer. Also, it wasn’t particularly cathartic and the clinical setting was an unwelcome distraction.