Follow-Up:
Do you have a Bible? Read a verse in it each time before going to bed. Read especially the Psalms and John. No matter how short, a minute, five or more, just read a part of the Bible. Pray to GOD through Jesus Christ in the best way you know how, letting him know your fears and ask him to release you from these fears. Keep at it and if the image of what is terrorising you comes again, shout the name "JESUS"