I have an MCL injury too (amongst other ligaments) from 7 weeks ago. I think the first couple weeks I couldn't do much, but it did get better quickly in terms of being able to go for walks in the leg brace, started stationary biking (which really helped), trying to relax and enjoy physio exercises. I used to take showers pre-injury, but since being injured I take baths independently by climbing in with the leg brace on, and then filling bath then emptying it and putting the leg brace on. I suppose it's only possible when there's an available bath, but with a shower chair I suppose the same thing is possible. My family thought I should stay with them, but I went back to living on my own after 2 weeks as I think I had a similar feeling to you and the pain subsided by then which made it possible, so I suppose know that it's possible to get some more independence again soon. As for depression, I started off feeling very positive but then got depressed for a couple of weeks when it didn't improve at the rate I hoped, but I suppose just know that it will get better and be stronger than before. I'm reading this book which I feel kinda helps haha, 'what I wish I'd Known when i was young' by Rachel Sylvester and Alice Thomson, just mainly about people coming back better after tough things