Everyone I know in UX who's been in the field for more than 5 years has experienced burnout. Every teacher I know who's been in education for more than 5 years has experienced burnout. I'm pretty sure all of my doctors are. It's an epidemic we pretend doesn't exist.
You have permission to take a break from whatever it is that is causing your stress and just deal with the stress itself... You are allowed to pause and turn toward your own body with kindness and compassion.