What would you do?!

How can you fight people doing things to your body and mind? And prevent something bad from happening. I feel it’s a physical and psychic attack. I wish I knew who is doing this to me without thinking it’s the president or pope. I pray that neither people were in my body. I don’t know how people can get in my body or how they hurt me physically. Does anyone have any theories on how they can do this? What would you do to protect yourself and shield yourself from their attack? Just want to be left alone.