Easily scared, what are some ways to get rid of scary thoughts or ideas?

I'm very easily scared as you can tell, and I need ways to get rid of thoughts. Ever since I was little I was afraid of the dark, ghosts, Bloody Mary, and The Candyman. Just recently, I have been introduced to the ever elusive, Slender Man. I know everything is just something that a kid would be scared of, but I still fear taking a piss in that dark of 3 AM. What are some ways I can get rids of these things? No nasty, rude, or hurtful answers because I'm being serious here!