Really good to hear your voice, Meh!
I'm glad, so glad, you took a sick day and I think mental health is about taking care of yourself. Recognizing your deep fatigue and granting yourself an extra day of rest sounds sane and responsible to me.
Sorry the job is so unfulfilling, and I like the idea of passive endurance. Sometimes that's what gets us through.
You sound clear. Making choices. Accepting gravity.
I think the endurance it takes for many, many people to keep on going is something like learning to float. Floating on the surf of it. The surface. So a tedious, underpaid job doesn't suck you all the way under.
Maybe passive endurance is just a survival instinct. There's real dignity in it, is all I know.
hugs
Hops