You can order grow bags online (legality depends on your location). Easier to grow than a cactus as long as everything’s sterile.

I used to suffer from depression and social anxiety. Became a shut in and made little to no progress in therapy. Ended up taking shrooms a couple of times and poof. Healthy again.

Milage may very much vary though. It’s important to do some reseach before attempting this. Also definitely don’t try if there are cases of schizophrenia in your family. And if you are in therapy tell your therapist about it.

I think what made it work so well for me is that I took them fully aware that they might make me confront my fears. I just felt ready to experience it all, good or bad. That mindset got reinforced with every trip and now carries me through life. I was also ready to let go of beliefs that don’t serve me - which ended up being just about all of them. If neither of those experiences sound desirable to you then it won’t be for you. Otherwise best of luck and safe travels.