Every lie the enemy speaks in to your life like, fear, worry, anxiety, heaviness and depression is a weapon that he's formed against you. The Word says in Isaiah 54:17 that NO WEAPON formed against you shall prosper.
Remember, none of the above mentioned examples are ever from God. Yeshua is the way, the TRUTH and the life. The devil is a liar and there is NO truth in him.
These things cannot prosper in your life but one way... your agreement with them.
When these things attempt to rise up in you, then you have stepped onto a battlefield, you are clothed with the full armor of God, and worship is your cry of victory, which strikes absolute fear into the heart of the enemy!
Satan does not know your future, only God does. Satan only operates in the fear of the unknown and what if.
Whose report will you believe?