Compounding factors make mental illness worse. One of them is loneliness. Although we're all different in terms of how much company we'd like to keep, being lonely all the time works against the path to recovery.
It's hard to power through the notion of being with other people when you just want to sit and do nothing (or can only do nothing). However, recovery needs (perhaps requires) the support net of positive community. There is power when you can, in whatever way, both share your burdens with others, and you may find giving back into community a helpful way to prove to yourself you're still valuable.
Opt for community, go find community, in the flesh kind of community, and don't look back.