[zeroego]

I see ADHD mentioned a lot on HN, so I hesitate to suggest that you be screened for it. One thing I will say is I'm the same age and have quit a comparable amount of jobs in my life. When I finally did get screened the doc said this was fairly common among people with ADHD. Variety and a certain amount of autonomy is really important for me in order to be content at a job for longer than a year. Not trying to diagnose you off a single post, but just food for thought. Best of luck to you.