SANDY, Utah — Shawn Blymiller spent 10 years of feeling mostly numbed while prescribed traditional anti-depressants, trudging through his day-to-day life as a suburban Salt Lake City father of two kids balancing the obligations of family and work selling technology software. Under a therapist’s supervision, Blymiller took psilocybin — the most popular of the hallucinogens known broadly as “magic mushrooms” …