Then they are bad therapists.

It's not a job of a therapist to decide whether you have a problem or not. Their job is to listen to what you consider to be a problem and help you deal with it.

Unfortunately I cannot give tips regarding guided experiences with psychoactive substances. I rely entirely on hearsay and stories from acquaintances from days long gone.

Personally I only ever experimented for academic purposes and occasionally just for fun, but never for therapeutic reasons.