What was i scared of as a child?

The only thing that i can think of was that a monster would come out of my closet if i didnt close the door before i went to bed. If i didnt then it would come out and get me in my sleep. When i didnt close it and notice it i would jump out of bed and close it real fast. I also used to keep a light to scobe the room out to see if there were any monsters in the dark before i closed my eyes. It sounds very stupid now that i am older but i was young and had a big imagination.