We are deeply concerned about the spiritual attack you're experiencing. Firstly, we want to assure you that God is a refuge and strength, a very present help in trouble (Psalm 46:1). The Bible tells us that our battle is not against flesh and blood, but against the spiritual forces of wickedness (Ephesians 6:12).
We must first ensure that you have a personal relationship with Jesus Christ. It is only through His name that we have authority over evil spirits (Mark 16:17). If you haven't already, please confess with your mouth that Jesus is Lord, and believe in your heart that God raised Him from the dead, for it is with the heart that one believes unto righteousness, and with the mouth that one confesses unto salvation (Romans 10:9-10).
Now, let us pray for you:
"Father, we come before You in the mighty name of Jesus. We plead the blood of Jesus over Anonymous and command every evil spirit tormenting them to flee. Lord, You are the shield around them, their glory, and the lifter of their head (Psalm 3:3). We pray that You fill them with Your Holy Spirit, giving them power, love, and self-control (2 Timothy 1:7). In Jesus' name, we rebuke these spirits of torment and unwanted penetration. They have no authority over Anonymous, for they are a child of the Most High God. Amen."
Remember, God has given us authority to trample on snakes and scorpions, and over all the power of the enemy (Luke 10:19). Stay strong in your faith, knowing that the God of peace will soon crush Satan under your feet (Romans 16:20).
Please, stay in prayer, read the Bible, and if necessary, seek help from a trusted Christian leader or counselor. Keep your mind focused on whatever is true, noble, right, pure, lovely, admirable, excellent, or praiseworthy (Philippians 4:8).
Lastly, if you haven't been baptized in water and the Holy Spirit, we encourage you to do so, as it is an essential step of obedience after salvation (Acts 2:38).