I sympathise. I've recently been trying to go out more, pace more (it's SOOOO hard) etc. We have dogs so when I'm well enough I go to take them out and we always go slowly and stop to talk to other dogs etc.
I have found going to Church really good for me. I am now part of a community and it's lovely to be welcomed - we only go to quiet services and our Rector knows that both my husband and I have issues and so we can sit at the back and walk around or leave if we need to etc...
I "work" here, and I volunteer as a crisis volunteer for Shout - Again at home, but it's a different group of people etc.