I go out and do stuff for me. I’m perfectly comfortable with wandering around and looking at things without ever interacting with everyone besides thanking the person behind the register after buying something. I’ve had social anxiety for so long that it’s become a normal thing for me now to not expect any interaction with anyone. And, because of this, no one wants to talk to the quiet person who is scared to look at you in the eye. They might think I’m just being rude or something but in reality I’m avoiding a potential interaction that scares me. So, speaking to what this person said about going out and doing stuff I can relate. Going out in public doesn’t necessarily mean you’ll interact with people. You can be alone even when surrounded by people.
Set a timer for when you’re sitting at a desk and working. Every hour, I get up and do something or go get some water. It helps