Good engineers' poor personal skill is often a manifestation of traits that allow them to be good engineers in the first place (though not a necessary condition). The same way Steve Jobs and James Cameron are horrible bosses to work for, the same way CEOs often suffer from ADD and bi-polar disorder, and the same way so many amazing Nobel Laureate have autism problems. If you appear ordinary in your personalities and traits, then chances are that you aren't the outstanding leader of your field.
I can't believe how much you sacrificed. Here I am thinking I had it hard. It's so great that you are upbeat and energetic long after the YC days despite all your sacrifice. Best of luck to all your efforts!
Strange and pathetic as it may sound to my non-startup friends, I couldn't agree more on the point of having a support group. Everyday there are things pushing my limit, and if not for my friends, I would have gone crazy by now.
I've tried several password managers but didn't like them too much. I currently use a word document that is password protected (ironically) and named something inconspicuous. "Report on endangered dolphins in China"