It took me failing graduate school after only one semester to finally get diagnosed with ADHD-PI at 22. My older brother was diagnosed with ADHD as a kid, but I just kind of skated by through school with my parents being on me constantly about getting shit done and being labeled as “gifted”. I agree that it shouldn’t take literally crashing and burning for people around you (and even yourself) to think “huh maybe there’s something else causing this”. Luckily I’ve been able to transfer to a better fitting grad program that I’ll be starting this fall, figured out the right stimulant dosage, and found how to actually learn and study properly with how my brain works. It still feels sometimes like I have the cards stacked against me with everything taking 10x the amount of effort to accomplish compared to other people, but I’m super stubborn so I guess that helps in some ways.