Did I tell you I'm scared to go outside?
What about going outside scares you?
I'm afraid to be around strangers and I'm scared they'll tell me what I should and shouldn't do.
Sometimes not wanting to be around others makes sense, but in this context it sounds like you have a very debilitating fear that is causing you to not do very normal activities that everyone else does. If you're unable to do something as important as go outside, then you should call a psychiatrist and attempt to figure out ways to fix this issue.
I guess you're right. I don't like feeling this way.
It's good that you already perceive you have a problem. That greatly increases the probability that therapeutic intervention will be successful.