Your mind is the devil’s playground, but it is your battleground. In order for you to stay free from the enemy’s oppression, you must wage war on the attacks that come against your thoughts.
You do this by using truth to combat the lies and fighting fear with faith. You have been given the weapons of war that are effective in gaining victory, but you must do the work, says the Lord.

2 Corinthians 10:4-5
For the weapons of our warfare are not carnal but mighty in God for pulling down strongholds, casting down arguments
and every high thing that exalts itself against the knowledge of God, bringing every thought into captivity to the obedience of Christ.