There are times when it feels like all hell is coming after you. My way of telling when I am under heavy attack is dizziness, deafness in my right ear and tunnel vision.
A prayer for protection may not do the job. That's when you hide. My favorite prayer is: "Heavenly Father, I ask you to hide me in the cleft of the rock; Jesus is my Rock. Hide all paths that lead to me. I ask this in Jesus' name. Amen."
I have heard others pray for Jesus of Nazareth to hide them under his wing. I am sure there are other scriptures that can refer to hiding places that would also be effective.