I was diagnosed at 35 and started meds at 37. None of the non stimulants worked for me, but they do work for others. For stimulants I’ve only been on lisdexamfetamine (vyvanse), but it’s worked great for me. I was at 60mg but am trying out 50 mg right now since my bp was a bit higher than ideal. I did switch to decaffeinated coffee since by I like the taste but don’t really need the caffeine I had euphoria for a day, maybe a bit on the second day, and then it became so normal I wasn’t sure it was working… until I missed some doses. When off of my dose I get more anxious and more easily overwhelmed, and I wasn’t used to it because I had been on the medication and doing better, but that wasn’t my normal state anymore when medicated!