Not by selling psychedelics, maybe yes in like, a chemical engineer working on a plant and side loading some production or making sure a package gets lost. But it's almost imposible to make a middle class normal life out of selling this stuff. The market is just not there.

For stimulants maybe and yeah your shady neighborhood cocaine dealer will probably get you some LSD and resell at a markup price after getting it from the friendly neighborhood psychonaut or public relations guy that needs to be stocked on MDMA for parties, but that's not their main job.