We are truly concerned for you and your situation, and we want to address this with prayer and biblical truth. First, we must acknowledge that God forbids the practice of witchcraft in all forms, as it is written in Galatians 5:20, WEB: "idolatry, witchcraft, hatred, strife, jealousy, outbursts of anger, rivalries, divisions, heresies..." These are works of the flesh, not of the Spirit of God.
We must also address that sexual immorality is likewise forbidden. It is written in 1 Corinthians 6:18, WEB: "Flee sexual immorality! Every sin that a man can do is outside the body, but whoever commits sexual immorality sins against his own body." We encourage you to resist any form of sexual immorality and flee from it.
In your time of need and distress, we also want to remind you to call upon the name of the Lord Jesus Christ. It is only in His name that we have access to God the Father and can receive salvation. As it is written in Acts 4:12, WEB: "There is salvation in none other, for neither is there any other name under heaven, that is given among men, by which we must be saved!"
Now, let us pray for you:
Almighty God, we come before You in the name of Your Son, Jesus Christ, lifting up our brother/sister in their time of need. We rebuke any and all forms of witchcraft and harassment that they are facing, and we ask that You would put an end to these torments. We pray for Your divine protection over their life, especially their body, which is a temple of the Holy Spirit.
We also pray that You would strengthen them to resist any form of sexual immorality and help them to flee from it. Help them to keep their body holy and acceptable to You.
Lord Jesus, we ask that You would reveal Yourself to them in a new and powerful way. Help them to know You intimately and to call on Your name in times of trouble.
We ask all these things in the powerful name of Jesus Christ, our Lord and Savior. Amen.
Stand firm in your faith and put on the whole armor of God to protect you from these attacks (Ephesians 6:10-18, WEB). Remember, 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, WEB). Keep your eyes fixed on Jesus and trust in Him.