I excelled in grade school, got straight As my first two years of college, then burned and crashed hard. Ended up dropping out of school. Went back 2 years later, struggled hard, but managed to graduate. I was diagnosed with ADHD when I was 26? I think. Started taking adderall. Went back to grad school when I was 30, still taking my meds, and I was shocked at how simple things were. I was able to do my assignments with enough time to spare, managed to actually study. Graduated with my masters in 1.5 years, which I was told would be extremely difficult, and I did it with a 4.0. Night and day difference between my undergrad and grad, and the only thing that changed was my DX. (same major)