I know I have too many projects started at once and often have to feeling of being overwhelmed by my 'stupidity' at taking on too much. I also spend way too much time looking at other people's projects and think 'I need to make one of those/that' but don't want to start yet another 'stalled' project.
No idea why I suddenly get motivated and spend 4 hrs 'playing with metal' but I have been known to take some painkillers, a then spend multiple 3~4 hr stints at machines making 'things' (I had spine surgery almost 2 yrs ago, still hurts to stand up too long)
My wife has to remind me to eat when I get started on stuff