Given that you've had psychotic experiences in the past (hallucinations and delusional/paranoid thinking), you'd be running the risk of inducing a psychotic break or schizophrenia by repeatedly taking hallucinogens. There isn't a "cure" for autism, but psychedelics are known to exacerbate latent psychosis.
From what I can tell in disorders and situations otherwise that have someone break from reality, one's sense of reinforced expectancy can be completely shattered for some once they see a different set of perceptions. By going through super basic repetitive routines a person can at points circumvent if not power through an episode by the merit of it being a routine, which is why we see disorders like Schizophrenia tend to showcase themselves once they leave home for college or to strike it out for themselves otherwise. With a psychedelic this can end up serving as that uncorking event, giving the impression that it was the drug's fault rather than it being contextually relevant.
Throwing tons of unexpected stimulus at someone with a weak grasp on reality can sometimes be all it takes to not be able to come back from it quite right. It's our room to rationalize our experiences that otherwise serve as a debrief from these altered states of mind. A lot of why I have any structure at all is a matter of logical repetitions over how things must be.
Speaking as someone who goes into episodes though, while I wouldn't advise this for other people I have myself used small doses of LSD to keep my behaviors under control. It forces the episode to the surface and surges it out during the course of the drug, making even a single tab experience feel like a much higher dose as the body unloads whatever the hell it's been becoming backed up with.
The afterglow state is also pretty level, it's harder to get stressed and therefor reactive while the substance is in remission. That being said shrooms from my experiences have been almost entirely a dissociative, I mostly lose track of my sense of self-identity as things around me start to have less color while the ground seems a little wobblier. There's a euphoric stage towards the start very briefly sometimes but most of it tends to just be a very dry experience.Yeah, thinking on it more after I wrote that, microdosing itself doesn't seem particularly reality-shattering. She still should be cautious, but I think usually her episodes are stress-related, and start out light with red flags (i.e. seeing entities in mirrors, being afraid a lot).
I don't struggle with that anymore
