Oddly hate the term hustle. However, burn out never fun regarding what job you are in. Most of the time the more you work the less you actually do productivity-wise. I can deal with 1-2 weeks of non-stop work, but after that, it's all downhill. One time I lost my cool putting dishes away and kick a metal bowl multiple times in front of my wife. I had multiple panic attacks in the past, or just drank. Exhaustion is never fun and never talk about in person.
I never understood the bragging rights of saying how much you work. I did that when I was younger. Was I productive? Nope. All I knew was work. I found outlets through running, walking, growing veggies, planning baseball trips. I learned to take longer lunch breaks to take walks to decompress on busy weeks.