> One is that when I have something to say about my day, there's nowhere to say it; no one on HN cares whether I fixed up the blinds or cooked pork steaks. I hang out in an IRC chatroom for that, but sometimes nobody's around for hours.

I really recommend keeping a journal to help with this.

I've been living alone for the past decade+, and journaling is a great way to express things that matter to you but others might not care about.

Also, learn to be friends with yourself. Don't be afraid to talk to yourself sometimes, it helps :)