Men, we all go through struggles in our lives.  Even as Christians, we are not immune to Satan’s attacks as those who are not saved.  We still live in a condition that is prone to death.  It is also those struggles we face in life that if left unchecked, will hinder our ability to be transformed as Christ would want for our lives.
Philippians 1:30 – since you are going through the same struggle you saw I had, and now hear that I still have.
Jesus did not come to save the righteous.  He came to save the sinner.  He came to those who humbled themselves and come to him.  Paul is revered as one of the best missionaries of all time, and yet, he also dealt with sin in his own life.
Do not think for a moment you are immune to Satan, or that you are invincible.  When we are at our strongest point, we are that much more vulnerable.  But do remember, you are saved in Jesus Christ and your sin has been paid for on the Cross of Calvary.
Always be on your guard and prepare to fight!