Unfortunately that's just a single good experience. (Unfortunately overall, not for you! I'm happy that your experience was so good.) Psych drugs (and many other drugs) are regularly overprescribed. Here is just one documented example: https://pmc.ncbi.nlm.nih.gov/articles/PMC6731049/

Opioids in the US are probably the most famous case though: https://en.wikipedia.org/wiki/Opioid_epidemic