Athletes know that if they want to improve their performance, they need to incorporate rest into their training. You, on the other hand, are absolutely certain that if only you could write for 25 hours a day (which you can't because you're a terrible person) you'd be at the top of your game. Luckily for you, your Imperfectionist friend is here to talk some sense into you.

References:

Ansorge, R. 2022: 'Rest and recovery are critical for an athlete's physiological and psychological well-being', UCHealth Today (https://www.uchealth.org/today/rest-and-recovery-for-athletes-physiological-psychological-well-being/)

Pang, A. S.-K. 2016: Rest: Why You Get More Done When You Work Less (London: Penguin)