I used to be scared like that and had to have the lights on all the time. couldnt close doors and the only relief I got was when I fell asleep but then the slightest thing I would jump out my sleep. My mother says I slept with my eyes open sometimes and she only realised this as when she came into the room and tried to speak to me as my eyes followed her around the room she assumed I was awake and wondered why I did not answer it was only one night she turned the light off and I screamed out that she realised that I had been asleep all the time. I spent years hearing things and seeing movements from the side of my eyes. As I had my children I didnt want them to grow up being afraid of the dark or thinking that there was something wrong with me. I decided that what ever was there was going to get me in the dark or the light so although I was afraid I said my prayers and turned the lights out shut my bedroom door and went to sleep. I am still afraid I dont know why but I know that the mind plays bad games with us and if something was there there is nothing I can do about it. I am told its just anxiety and depression amd sometimes I think i am going crazy.