Don’t take this one on alone. You need God’s spiritual authority to defeat the enemy. Many people don’t believe the devil and his demons even exist, but the Scriptures clearly teach that evil was cast out of people, Jesus came to defeat the power of death and Satan, and we can be free from the dominion of darkness.
If you have the Spirit of God living within you, if you’ve given your life to God in surrender to His will, then you’re in a fight, a fight for your very life. God has won the victory, but we struggle with battles in the spirit, daily. Battles we cannot see with our natural eyes, but battles that are real and difficult surround us.