Just from personal experience I met a bunch of people who did to many psychedelics and became ego maniacs . I also had my first panic attack on acid. Also read about weird therapists taking advantage of people on psychedelics during therapy. I'm a believer in the use of psychedelic therapy but there really needs to be good protocols in place to protect patients who are very vulnerable. I really wish I could go back in time and see the Czech psychedelic clinic it sounded really cool.