Anyone else live pretty isolated lives?

Yes

Have any tips?

I guess the first and most important thing is learning to enjoy your own company.

It's hard to be a hermit if you spend all day criticizing and judging yourself, life just turns into wallowing in self-pity or self-loathing. It sounds hokey, but you really do have to learn to love yourself in some capacity.

Additionally, living an isolated/insular life does not mean no human contact. It's still very important to have real human interactions, even if it's an online conversation once a month. You need to get outside of your head every once in a while or you will become disconnected from the real; and I'm not talking about posting here, an actual conversation. Without it you are gonna be prone to delusions, since you aren't able to contrast your perceived reality from the collective's.