I think I may have written a blog entry on if ghosts or negative energy can hurt you. Let me find the link:
Erin Pavlina - Spiritual Wisdom for Conscious People » Blog Archive » Ask Erin: Are ghosts dangerous?
Keep telling them to go away until you don't feel afraid anymore. One thing that will raise your vibration pretty quickly is humor. Watch something funny before going to bed. Gratitude works too. Call someone on the phone and tell them you love them. Nothing is as magical a "shield" as love.
