100%. I was considered bright but lazy / performing below potential throughout my schooling and first years of work. In my thirties I was diagnosed with a combination of anxiety and ADHD and the prescribed medication is immensely helpful. I view younger years of frustration/boredom/hyperactivity as somewhat wasted and I wish that the adults in my life has realised what was happening when I was a child.

The physician who ultimately prescribed the medication informs me:

1. Methylphenidate aka Ritalin is not addictive (and I had no problem stopping it for some years when it made sense)

2. Probably every adult could benefit from its use at specific crunch times. (But not permanently unless you're actually diagnosed with ADHD)

The FUD I've experienced when I mention Ritalin always surprises me.