Understand two thoughts, and fear them. 
One says,  
"You are a saint," the other, 
"You won't be saved." 
Both of these thoughts are from the enemy, and there is no truth in them. 
But think this way: 
I am a great sinner, but the Lord is merciful. He loves people very much, and He will forgive my sins. 
Saint Silouan the Athonite

 
