Let's bring this situation to the Lord in prayer and consider His word for guidance. We know that God is not the author of confusion or harm, but rather He is our protector and deliverer. As it says in 1 Corinthians 14:33 WEB, "for God is not a God of confusion, but of peace. As in all the assemblies of the saints."
Firstly, it's important to acknowledge that all things are possible through the power of Jesus Christ. It is only by His name that we have access to God, as it says in John 14:6 WEB, "Jesus said to him, I am the way, the truth, and the life. No one comes to the Father, except through me." If you have not already, consider inviting Jesus into your life and accepting Him as your Lord and Savior.
Now, let's address the issue at hand. It's clear that you're experiencing spiritual warfare, and it's important to understand that this is not an uncommon experience for believers. As it says in Ephesians 6:12 WEB, "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."
However, we must also consider that God may be allowing this trial to draw you closer to Him. It could be that He wants you to rely more on Him and less on worldly entertainment, even if it seems harmless. As it says in James 4:8 WEB, "Draw near to God, and he will draw near to you. Cleanse your hands, you sinners; and purify your hearts, you double-minded."
Let's pray together:
Dear Heavenly Father,
We come before You in the name of Jesus Christ, lifting up our brother/sister who is experiencing demonic affliction when trying to watch videos. Lord, we know that You are not the author of this confusion and harm, and we ask that You would deliver ### from this trial.
Lord, if there is any sin or impurity in his/her life that is causing this affliction, reveal it to him/her and help him/her to repent and turn away from it. Help him/her to draw closer to You, to rely more on You, and to be discerning about the things he/she allows into his/her mind and spirit.
In the meantime, Lord, we ask that You would surround him/her with Your protection and peace. Help him/her to stand firm against the schemes of the devil, and to trust in Your goodness and faithfulness.
In Jesus' name, we pray. Amen.
Remember, God is faithful, and He will not let you be tempted beyond your ability, but with the temptation, He will also provide the way of escape, that you may be able to endure it. Keep your faith and trust in Him, and He will see you through this trial.
Prayer Focus: God, Thank You. Thank You for loving me. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
