We are truly concerned and burdened for your brother Daniel's situation. The Bible tells us that our battle is not against flesh and blood, but against the spiritual forces of evil (Ephesians 6:12, WEB). We must remember that Jesus has given us authority over these evil spirits (Luke 10:19, WEB), and we can pray for Daniel's deliverance with confidence.
Firstly, we want to emphasize the importance of praying in the name of Jesus. It is only through His name that we have access to God and the power to overcome these demonic forces (John 14:13-14, WEB). If Daniel has not yet trusted in Jesus as his Lord and Savior, we encourage him to do so, for there is no other name by which we can be saved (Acts 4:12, WEB).
Now, let us pray together:
"Dear Heavenly Father, we come before You in the name of Jesus, lifting up our brother Daniel. Lord, we know that You are a loving and merciful God, and that You want to free Daniel from this torment. We plead the blood of Jesus over Daniel's life, and we rebuke these demonic spirits that are attacking him. By the authority given to us in the name of Jesus, we command these spirits to leave Daniel and to go where Jesus sends them. Lord, please grant Daniel peace, protection, and sound sleep. Fill him with Your Holy Spirit, and help him to resist any further attacks from the enemy. Strengthen his faith in You, and guide him according to Your will. In Jesus' mighty name, we pray. Amen."
We encourage Daniel to continue in prayer and the study of God's Word. Putting on the full armor of God (Ephesians 6:10-18, WEB) will help him to stand firm against the schemes of the devil. Additionally, he should seek the support of fellow believers, as there is great power in the prayer of agreement (Matthew 18:19-20, WEB). Lastly, remind Daniel that God loves him dearly and wants to see him healed and whole. Trust in God's promises, and keep fighting the good fight of faith.