First, travel to seek a good spiritual director in another diocese, or perhaps an exorcist, in a neighboring diocese if needed. Speak with them to receive their advice. I would especially recommend making a general confession of all your sins in life, as this can purify you and, in some way, help to banish any demonic influence.
A good general confession of all your sins throughout your life would be very beneficial. Then, forgive those who have hurt you in your past, and work to purify any resentment or ill feelings you hold against others. This can also help expel or reduce demonic influences. Be sure to pray the Saint Michael the Archangel prayer, practice charity and love, and seek a good exorcist in another location if necessary.
Dear visitors of Gloria Dei and all who have already written or who will write a personal message to me. I am grateful for your attention, your kindness, for your spiritual support and especially for your sacrifices and prayers for me. God may reward you!