You are not fighting against flesh & blood but powers on the dark side. God has given us the weapons to stand so use them.
Read: Ephesians 6:12 and James 4:7 below.
For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms.
Submit yourselves, then, to God. Resist the devil, and he will flee from you.