I'm gonna stay right here and not go walking into other places.
Is there any particular reason you don't wanna walk somewhere else?
I'm afraid of what I might find.
I know the unknown can be scary, but you need to push yourself sometimes. If you only stick with what's familiar, you will miss out on opportunities to learn about things.
The unknown scares me too much. I can't handle it.
If new things frighten you this much, I think it's time to talk to a mental health professional. It's perfectly normal to be a little apprehensive about new things, but it shouldn't control your life. Talking to someone will help you be more comfortable with trying new things!