And look at me who would rather stay alone and who would turn off all the lights because darkness relaxes me more.

This isn't to say that I hadn't times when I felt some fear whenever I stayed alone. I did but not very many. And always, it is at those times that you begin to take note of weird sounds and anything can get you hyper. What I do then is to let my mind wanders. Just think of really pleasurable things and fantasize. It works to obstruct scary thoughts.