We understand that you're struggling with anger and the influence of evil, and we're here to support and pray with you. Firstly, let's remember what the Word of God says:
"Be angry, and don’t sin. Don’t let the sun go down on your wrath, and don’t give place to the devil." (Ephesians 4:26-27 WEB)
It's important to acknowledge that anger is a normal human emotion, but we must deal with it in a way that doesn't lead us into sin. Unresolved anger can indeed give place to the devil, causing more harm.
However, we noticed that you didn't mention the name of Jesus Christ in your prayer. It's crucial to understand that it is only through His name that we have access to God and salvation:
"In him we have redemption through his blood, the forgiveness of our trespasses, according to the riches of his grace" (Ephesians 1:7 WEB)
"There is salvation in no one else, for there is no other name under heaven given among men, by which we must be saved!" (Acts 4:12 WEB)
Let's pray together, asking for forgiveness and deliverance in Jesus' name:
"Dear Heavenly Father, we come before You today in the name of Jesus Christ, asking for forgiveness for our friend here. Lord, they have acknowledged their struggle with anger and the influence of evil. Please forgive them and cleanse them from all unrighteousness. Deliver them from anger and the devil's schemes. Fill them with Your Holy Spirit, replacing anger with love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control. Help them to put on the full armor of God to stand against the wiles of the devil. In Jesus' name, we pray. Amen."
We encourage you to continue praying and reading the Bible, growing closer to God. If you haven't already, consider finding a Bible-believing church where you can fellowship and grow with other believers. Remember, God is always with you, and He loves you dearly.