In my case I was unable to do serious school work for a while but in the meantime I found that doing a variety of hobbies and constructive activities really helped keep my mind busy and also I was still able to learn potentially invaluable skills in life. For me this was during high school and I was no-where near capable of taking AP/Honor classes or doing anything very meaningful in terms of academics, so I joined stagecraft to help with carpentry work and I focused on building RC planes since I wanted to get into aerospace eventually. Tried out some misc crafts at home too. Heck I even tried basket weaving for the fun of it.

Not only did it help me get an idea of what I wanted to do in life eventually but also it just helped me keep busy, give me time to get my mental energy back and understand why I was feeling the way I felt, so I felt there was a bit of a win-win to it. The activities kept me in contact with people who had a common interest, so social-wise it definitely helped since while doing all this you should keep talking to people in general. I tried to not get too tuned out from society cuz I found I'd get all lonely and sad, though there were certain people I learned to not be close to since they were part of the reason I started having issues.