In the evenings, my brain was fried by everything that happened during the day.
How I Used a Vacation Timer to Write a Book (or, Why I Shut Off the Internet at 9PM)
Jake Knapp

This is something with which I struggle. By the end of the day I have used too much of my brain power. It has me thinking that I need to find some way to reboot or find a lot of ways to save my brain during the day.

That said, I’m a morning guy and get up so I can write for an hour, but I need at least two hours to get better work done.