No, it's not going to damage you. But it's a sign that your personality could be damaged. Not damaged by the psilocybin, damaged by your habits and lifestyle.
What's bad about tripping once a week tho? 6 or 7 hours on psilocybin a week doesn't sound that bad to me. Certainly got to be better than getting pissed up 3 or 4 times a week on alcohol.
