Like a video game character, I’ve got a energy bar suspended over my head. So do you. If it’s full we do stuff well, if it’s empty we’re basically turds. Doing healthy things keeps it full longer, but I’ll save that for another time.
When’s the last time you had to study for something?
Maybe you procrastinated and had to catch up. Or maybe you wanted to crush it. Either way you sit down for a monster study sesh, like 4 hours. After an hour your bar is empty, so you spend the next 3 hours mashing buttons that don’t work. Your a turd for 3 hours and it’s no fun. This frames the experience negatively and you procrastinate next time.