Working at odd hours

Due to a combination of too much screen-time and an out-of-date glasses prescription, I get really bad headaches if I work for too long in front of the computer. (I know, right?) 

To compensate for the breaks I take during the day, I've been finding myself up at 1 or 2 am trying to catch up. I used to do this before This Happened, but not as often: I intentionally left work physically at work so I would break the habit.

Anyway, a few weeks into this habit confirms for me that it's not actually worth the tiredness the next day even if I do get caught up. But I can't seem to shake the feeling that I am falling behind. Maybe a better way to say it is that I can't seem to make peace with falling behind.