Oh, and another thing: if you’re reluctant to do something, such as reading, cleaning up, going for a walk, etc, then set a timer for 10 - 30 minutes and commit to it. A human can withstand quite a lot for 15 or 20 minutes. It’s how I was able to get through brutal HIIT cardio routines and feel good for the rest of the day. The Pomodoro technique works well for this sort of time and task management, at least for me.