I've done these 2 of Russell Barkley's free courses: http://www.continuingedcourses.net/active/courses/course109.... http://www.continuingedcourses.net/active/courses/course109....
I took notes on the former (here: https://shimmercare.notion.site/ADHD-in-Adults-Diagnosis-Imp...) but didn't get around to the latter.