Not that my situation is anywhere near as dire as a worker on the 996 plan in China, but I do a similar tradeoff. During work I also help the kids get through their school day, so my workday gets a bit longer, then after that I have my own schooling in the evening, and then there's no time left. So I steal it from sleep time or else I get nothing at all.

Can't tell you how much I look forward to 1) being done with OMSCS, and 2) the pandemic ending and the kids going back to in-person school. Never going to complain about teacher salaries again (not that I really ever did, but still...)