The only time I managed to acquire psylocobin was on an island where a big rave was happening. A hippie guy sold me magic mushroom pills. I was too scared to take it in this atmosphere and wanted to take the pills home. To leave the island, one had to walk through nipple-high water. The pills in my wallet melted away in the water.
If you are in the US mushroom spores can be found in head-shops and grown easily enough.
If you have friends who smoke weed they will likely know someone who knows how to get mushrooms.
Raves are fun enough as it is. You made the right choice.
Maybe some other day.