i dont trip on mushrooms but 1-4 times per year. acid is more recreational for me so i will take that about 10 times a year. Cacti i will take even more frequently than acid. Tripping every week is too often in my opinion.
Once a week is ok, but not for more than a couple of weeks. For a more long term forecast, once a month is ok.
I've been eating large doses of mushrooms (5 grams at least) every week and sometimes twice for the last month and a half maybe and I don't consider this too often at all. No noticeable after effects have ever been noted the next day, and even when I only spaced my trip out between 4 days apart I still noticed no real tolerance (though it may have to do with the doses). Idk what it is about mushrooms but these things really have me going at the moment. I mean if it wasn't for tolerance I would probably eat them every day. Even with that ridiculous high dose come up (which is the fuckin worst) it is always so incredibly worth it.