You have authority over yourself, so you can pray this for yourself. Best to get right with the Lord and beef up your prayer life as well.
Perimeter Prayer
Lord Jesus Christ, in your love and mercy establish a perimeter of protection around Anon and ourselves and all our loved ones, those who pray for us and their loved ones. May the Holy Angels guard him/her/us and all our possessions, establishing a perimeter of protection around Anon, rendering him/her/us immune from any kind of demonic influence. I ask that any demons that should try to come against him/her/us be rendered deaf, dumb, and blind; that You would strip them of all weapons, armor, power, illusions, and authority; that You would bind, rebuke and disable them from communicating or interacting with each other in any way. Remove them, sending them directly to the foot of Thy Cross. Jesus, Son of the Most High, I ask this in Thy Glorious and Most Holy Name.
Amen