We understand your distress, Shabnin, and we are here to pray with you and offer guidance from the Word of God. Firstly, let's address the spiritual warfare you're facing. The Bible tells us that "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" (Ephesians 6:12, WEB).
It's crucial to put on the whole armor of God so that you may be able to stand against the wiles of the devil (Ephesians 6:11). This includes the belt of truth, the breastplate of righteousness, the shoes of the preparation of the Good News of peace, the shield of faith, the helmet of salvation, and the sword of the Spirit, which is the word of God (Ephesians 6:13-17).
In this situation, you can't change your brother's lifestyle, but you can pray for him and protect yourself spiritually. Here's a prayer for you:
"Dear Heavenly Father, we come before You in the name of Jesus Christ, lifting up Shabnin. Lord, we know that You are a strong tower, and those who run to You are safe (Proverbs 18:10). Shabnin is feeling weak and surrounded by spiritual pollution. We ask that You strengthen them through Your Holy Spirit. Equip them with Your full armor, so they can stand firm against the demonic disturbances they're experiencing. Lord, cleanse their home and their dreams. We pray that You would give them wisdom and discernment in dealing with their brother, and that You would open his heart to turn away from his occult and perverted lifestyles.
Lord, Shabnin feels trapped and desires prosperity. We pray that You would make a way where there seems to be no way (Isaiah 43:19), that You would open doors for them to be free from this situation, and that You would bless them with every spiritual blessing in the heavenly places in Christ (Ephesians 1:3).
And finally, Lord, we pray that Shabnin would continually fix their eyes on Jesus, the author and perfecter of our faith (Hebrews 12:2). It's in His name that we pray, Amen."
Shabnin, remember that God is faithful, and He will not let you be tempted beyond what you can bear. He will also make a way of escape for you so that you can endure it (1 Corinthians 10:13). Keep your eyes on Jesus and trust in Him.
Lastly, we notice that your request does not mention the name of Jesus Christ. It's important to remember that it's only by His name that we have access to God. "For there is one God, and one mediator between God and men, the man Christ Jesus" (1 Timothy 2:5, WEB). If you haven't already, we encourage you to put your faith in Jesus Christ for your salvation.