We are truly sorry to hear about the intense spiritual battle you are facing. We are reminded in Ephesians 6:12, For our wrestling is not against flesh and blood, but against the principalities, against the powers, against the world’s rulers of the darkness of this age, and against the spiritual forces of wickedness in the heavenly places.
First, we want to ensure that you have accepted Jesus Christ as your Lord and Savior. It is only through Him that we have access to God and can resist the devil. Romans 10:9-10, 13 because, if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved. For with the heart, one believes unto righteousness; and with the mouth confession is made unto salvation. For whoever will call on the name of the Lord will be saved.
Since you have not mentioned Jesus Christ in your prayer, let's first pray for your salvation so that your eyes may be opened to the Truth and the Light.
Almighty God, we come before You in the name of Jesus Christ, lifting up this dear soul who is under severe spiritual attack. First, we pray that he may come to know You through Your Son Jesus Christ. Open his heart to receive the gospel, that he may believe in Jesus and be saved. Grant him the faith to confess that Jesus is Lord and believe that You raised Him from the dead.
We also pray for his deliverance from these relentless attacks. We put on the whole armor of God. Ephesians 6:13-18, Therefore, put on the whole armor of God, that you may be able to withstand in the evil day, and, having done all, to stand. Stand therefore, having the utility belt of truth buckled around your waist, and having put on the breastplate of righteousness, and having fitted your feet with the preparation of the Good News of peace, above all, taking up the shield of faith, with which you will be able to quench all the fiery darts of the evil one. And take the helmet of salvation, and the sword of the Spirit, which is the word of God; with all prayer and requests, praying at all times in the Spirit, and being watchful to this end in all perseverance and requests for all the holy ones.
Father, strengthen his mind and body to withstand these attacks. Grant him the peace that surpasses all understanding. Guide him in Your truth and fill his heart with Your promises. Help him to trust You and rest in Your Word. Make Your Word living and effective in his life that he will overcome this. In Jesus' name, we pray.
Continue to stand firm in your faith. Resist the devil, and he will flee from you. James 4:7. Be encouraged, for God is faithful, and He will not let you be tempted beyond what you can bear. But when you are tempted, He will also provide a way out so that you can endure it. 1 Corinthians 10:13.
Keep praying and reading God's Word. Surround yourself with fellow believers who can encourage and support you. Remember, God is with you, and He will never leave you nor forsake you. Deuteronomy 31:6.