A childhood belief about i'm different

I watched The Truman Show when I was about eleven, and it permanently engraved into me a deep suspicion of surreality.
I used to totally believe there were invisible cameras everywhere I went, in corners and mirrors, and that everyone was acting around me. I did some pretty embarrassing stuff trying to catch people out!
It's still there to an extent, teasing at the back of my mind. I've never been convinced of my own privacy since.