Same here. I'd be afraid of "losing it".
In other words, don't try it. The fear of insanity is probably a good fear if people think of doing it just for fun. But if the day comes when a doctor takes you in a trip, your fear will be less, and the doctor will know how to supervise you.
The key idea of this article is that research into psychedelics should be allowed and encouraged. Timothy Leary never advocated for people to try them for fun. Don't think of psychedelics as recreational things to try but as powerful medicine which needs trained professionals to administer.