The best thing to do is to consult with a physician on this matter, еven if side effects, drug interactions and precautions are readily available and cardiac arrest and death are among them. Idk, is this worse?

There are certainly reports and some research showing that developing psychosis is certainly a risk as least for some people.

Probably not…the question is, does Psilocybin have a higher incidence rate of users suffering episodes of severe depression or psychosis than, say, SSRIs. Amongst all the “spiritual” drugs, even counting THC, Psilocybin is the most well tolerated—even so, SSRIs tend to still be very safe, even if they are not very effective.