Much of my spiritual practice has been clearing other dimensional entities from energy bodies. I have been gifted with the ability to "see" them and clear them with Archangel Michael's help. I have been working on empowering people to be able to deal with them directly. As you develop spiritually, you will reach a place where they will not affect you. But until then, use these tools!
Here is a prayer of protection.
The protection will last about a day, so you should start your day speaking this aloud:
"Dear God, protect me from entities from all dimensions and universes seeking to enter my energy body. Send them with my unconditional love and respect to Archangel Michael for their return to their own universe and home. Thank you, God and Archangel Michael."
You can use a similar prayer spoken aloud to clear any in your energy body. If told, they must obey.
"All entities from all dimensions and universes leave my energy body. Go with my unconditional love and respect to Archangel Michael for your return to your own universe and home. Thank you God and Archangel Michael."
Spoken aloud is much more powerful, but use these tools nonverbally if you cannot. This is based on the work of Christopher Macklin, a powerful healer. I hope this helps!