Try: Taking a Walk
Easier said than done. But just getting up and going for a 10 minute walk can melt the snowball a bit.
The Human app helps you to be active for 30 minutes a day and tells you if you've hit that 10 min walk level with a pretty design. I find that having a small goal--just go to the library--can get me out of the house, and that's what it takes to start feeling better.