Is there a reason Nick can't be around more? Like he doesn't live with you? Maybe he can teach you ways to protect yourself from the zombies when he's not there? I don't know.

Just some ideas to try to help you feel safer.
I am very cautious with people, myself. I've found here on PC in this board and the bipolar board some good people to talk to and get advice from, though. I agree, I want to talk to more people and have more friends, but at the same time I'm nervous about the whole idea and it's hard for me to feel I can trust most people.