Growing up  I always thought there were monsters in the closet now I know the truth those were actually demons in my closet and they were feeding of my fear.  

God can make those demons dissappear with a prayer. Say "In the name of the father the son and the holy spirit , God please bless this space with your presence and make the demons dissappear amen". Keep praying until you feel the demons are gone . Pray everyday and stay close to god .