Cannot stress this enough.
Just because a job isn't physical, that doesn't mean it won't be mentally draining.
And honestly, I find those types of jobs to be worse.
Says the 16 year old who has never held a steady job.
You hurt your knee? That's cute.
When I was 13 I fractured 9 vertebrae. Was less than 1mm from being completely paralyzed.
I'm not supposed to lift anything over 10 lbs, and yet I managed to work a framing job for close to 5 years, then HVAC, then residential painting.
I also held jobs as a grocery store cashier and Mc Donald's grill worker in-between. Both of which required me to be on my feet for 8+ hours/day.
Limitations are nothing.
//endrant