My default emotional response (to stress, anxiety, depression, etc) is fatigue. I had been fighting that pretty well with a solid workout routine but I just messed up my knee by going too hard and I now have to really lay off it, probably for several weeks. The lack of motion has me feeling depressed and tired again. I don’t want to make my injury worse by pushing it too soon but physically activity was really helping me before and without it I feel like I’ve taken 50 steps backward mentally 
Heyy love...try low impact exercises like yoga ...u can still stay active but not too much that it will put strain on you knee ....wishing u the best!!
I'm in a similar boat. Just let yourself heal and you'll be back at it soon. Hang in there!
Similar triggers; always hurting my back.. the physical pain is something I can work through. The depression is more difficult to work through
Yoga, active stretching, walks and lots of mental stimulus (avoid binge watching and couch surfing lol)
I know it’s tough! I’ve been right there. A few years back, I went too hard and chipped a bone in my foot and induced a stress fracture. 8 weeks of misery lay ahead of me. I felt pretty down for a week or so, but decided to still get my but in the gym every day. I focused on anything that didn’t involve legs. In 8 weeks, I grew a more solid core, and saw some good gains in upper body strength. It felt good to still be able to exercise even though I couldn’t run, row, bike, or do any heavy lifting while standing.
Improvise, adapt, and overcome! That’s what I kept telling myself.
Do upper body and core
Hang in there girl. Exercise has been my biggest help with the depression.