> I did see significant benefits, the ones you describe like a silent mind, attentiveness, patience, for a period of time. Then those things faded away, I stopped taking, and experienced side-effects as my body normalized to not taking.

This is exactly how someone without ADHD is affected by Adderall. The medication has two functions: increased alertness and focus, which you build a tolerance to, and improved executive control, which is only relevant for folks with ADHD, and your body generally doesn't build a tolerance to.