Angels are wonderful at protecting you and your energy. You can make this request before you begin your day, or you can use it for specific situations. For example, if you know you are going to be around a negative person or people, you can ask the angels to shield you during that encounter.
You can pray this prayer when you need protection. This prayer is inspired by Psalm 27. The world tries to convince us that the peace and prosperity of man will save us. But our soul yearns for an eternal answer. The only real security we have is in Christ Jesus.