Comment by sibeliuss

I don't mean to dismiss your ADHD (and I'm not), but all of the items you listed impact just about everyone and pretty much in the same way. It's the difference between greenfield and something someone else wrote. Keeping track of all of the details in a large system is hard, and most of it is boring. And just about anyone who has a real interest in the field would like to work on something interesting; when the interest isn't there, or the role doesn't align, it's easy to get distracted. And then one has to work twice as hard to keep up. Its basic human nature.