Thanks! I had not thought to look at studies. But I just checked Hopkins' website for that, and sure enough, they are conducting a number of psilocybin studies. They focus on specific conditions (e.g., Alzheimer's, anorexia nervosa) that don't fit my situation. But it is good to know that studies can be a source of treatment. (Now that I think of it, I got my covid vaccinations -- the first two -- in the Astra-Zeneca trial!)