I was just listening to an audiobook that reconfirmed what many already know. Americans are some of the most overworked people in the world.
We tend to skip our vacation days or aren't given enough vacation so that we can work harder.
I mention this mainly to say I give you permission if you feel overworked, stressed or even if you don't take a break.
Stare at the sky.
Go into your room and close the door.
Shut off the TV and read a funny book or blog.
Take a Chill pill.
Right after that you can go back to the grind. Don't worry. It's not going anywhere.