Understand that the satan is not invincible

Romans 6:5-10

"5 For if we have been united together in the likeness of His death, certainly we also shall be in the likeness of His resurrection, 6 knowing this, that our old man was crucified with Him, that the body of sin might be [a]done away with, that we should no longer be slaves of sin. 7 For he who has died has been [b]freed from sin. 8 Now if we died with Christ, we believe that we shall also live with Him, 9 knowing that Christ, having been raised from the dead, dies no more. Death no longer has dominion over Him. 10 For the death that He died, He died to sin once for all; but the life that He lives, He lives to God.'

In Roman 6:5-10 the apostle Paul expounds the truth that each believer is United with Christ in His total victory over sin death and satan. 

This is an infallible truth upon which each believer is responsible to stand. 

Sin and satan cannot rule over a dead person.

 Sin cannot master and put into slavery a person who is now " alive unto God" because of our union with Christ in His in resurrection. 

That is an infallible , unchanging truth upon which we are meant to stand regardless of experience.

So do not trust your experiences...