Here's a great post from Shane Lems on how despicable our sin really is before God. Check it out. And be grateful that "The saying is trustworthy and deserving of full acceptance, that Christ Jesus came into the world to save sinners, of whom I am the foremost." Given that sin is so treacherous it's marvelous that we can confess with believers everywhere the first answer from the Heidelberg Catechism:
Question 1. What is thy only comfort in life and death?
Answer: That I with body and soul, both in life and death, am not my own, but belong unto my faithful Saviour Jesus Christ; who, with his precious blood, has fully satisfied for all my sins, and delivered me from all the power of the devil; and so preserves me that without the will of my heavenly Father, not a hair can fall from my head; yea, that all things must be subservient to my salvation, and therefore, by his Holy Spirit, He also assures me of eternal life, and makes me sincerely willing and ready, henceforth, to live unto him.