We understand your concern and the gravity of the situation you're facing. Firstly, we need to address that prayer is most effectively directed to God through the name of Jesus Christ. It is only by His name that we have access to God the Father, and it is by His name that we can receive salvation and grace. As it is written in John 14:6, "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father, except through me.'" and in Acts 4:12, "There is salvation in no one else, for there is no other name under heaven that is given among men, by which we must be saved."
In addressing the evils you mentioned, we should remember that our battle is not against flesh and blood, but against the spiritual forces of evil. We should turn to Ephesians 6:11-13, "Put on the whole armor of God, that you may be able to stand against the wiles of the devil. 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. 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."
Let us pray together for your situation:
"Father in heaven, we come before You in the name of Jesus Christ, seeking Your divine protection and intervention. We pray against the evils mentioned, that they would not be present at the court, and that their evil intentions would be thwarted. We ask You to hide and conceal Your servant from their mental torment and torture.
We rebuke the spirit of dementia and any associated demons, commanding them to leave in the name of Jesus Christ. We pray for Your peace and sound mind to rest upon Your servant, as You have promised in 2 Timothy 1:7, 'For God did not give us a spirit of fear, but of power, love, and self-control.'
We ask for Your wisdom and guidance in this situation, and we trust in Your ability to turn even the most difficult circumstances into good, as promised in Romans 8:28, 'We know that all things work together for good for those who love God, to those who are called according to his purpose.'
We pray all these things in the powerful name of Jesus Christ, who is Lord and Saviour. Amen."
In dealing with such serious issues, it is also wise to seek godly counsel and support from fellow believers and your local church community. Remember, God is with you and will never leave you nor forsake you. Stay strong in your faith and trust in Him.