Beloved, it is easy to observe that Satan is well and alive, roaming around in the world along with his minions of wicked spirits and he is looking for whom to devour (1 Peter 5:8).
We are warned in Ephesians 6 about wickedness in high places. Satan employs anything or person(s) to carry out his wicked desire to kill, steal, and destroy. (John 10:10).
We must arm ourselves with powerful prayers as weapons against the wicked ones.
Personally, I found out that one of the best ways to fight against the wicked is to launch the fiery sword of the Word of God in prayers. I tell God about what I have discerned regarding the attacks of the wicked, and I ask Him to fight against the wicked ones who come against me and my household.
One of my favorite scriptures to pray against the wicked is found in Psalm 140.
Pray Psalm 140 (AMP) along with me:
Rescue me, O Lord, from evil men;
Protect me from violent men.
They devise evil things in their hearts;
They continually [gather together and] stir up wars against me and my children and my household.
They sharpen their tongues like a serpent’s; Poison of a viper is under their lips. [Rom 3:13] Selah.
Keep me, O Lord, from the hands of the wicked;
Protect me from violent men who intend to trip up my steps.
The proud have hidden a trap for me, and cords;
They have spread a net by the wayside; They have set traps for me. Selah. ¶
I said to the Lord, “You are my God; listen to the voice of my supplications, O Lord.
O God the Lord, the strength of my salvation, You have covered my head in the day of battle. Fight my battles for me, dear Lord!
Do not grant, O Lord, the desires of the wicked over me.
Do not further their evil device that they will not be exalted. Selah.
Those who surround me raise their heads; May the mischief of their own lips come upon them. Let the evil they plan against me engulf them, my Lord!
Let burning coals fall upon them; Let them be thrown into the fire, Into deep [water] pits from which they can not rise.
Do not let my slanderer be established in the earth; expose them!
Let evil quickly hunt the violent man [to overthrow him and stop his evil acts].” ¶
I know [with confidence] that the Lord will maintain the cause of the afflicted, And [will secure] justice for me, His beloved.
Surely the righteous will give thanks to Your name; The upright will dwell in Your presence.”
Thank You, Lord, for answering my prayers and for destroying the plans of the wicked over me, my children, my husband, and my household. No wickedness of the wicked shall prosper in my life. ALL GLORY AND ADORATION belong to You. I love You, Lord!
IN YOU, I know that I AM VICTORIOUS!
I pray these in the mighty name of Jesus Christ, my Lord and Savior. Amen
Have a blessed day 
