OP, you married, single? Kids or not?
The answers will vary greatly based on the answers to those questions.
I'm married with two young kids. I go outside and play with my little girls. No guy at work/school can bother me while I'm playing with my kids. I forget about all that crap.
Now, when I was single, it was a hike. And I mean a vigorous one. Nothing clears your head like a good walk in the woods. Even if the only thing you have available is a park, find some TREES. If there aren't enough to walk through, then find a patch of trees and SIT. Look at the trees and birds and junk. Wonder how they got there. Breathe..... slowly.
Done. Go home and chill.