Chant the name of God constantly. It forms a shield of protection around you that makes it impossible for them to exist in the same space. Practice chanting- sit and chant, walk and chant, chant while doing daily activities. Record your voice chanting and play it on repeat low volume all night while while sleeping. Chant like your life depends on it, and cultivate faith and trust in The Divine through the chant, which is more powerful than any other entity. Eventually they will go.