No one is happier than the one who has sincerely repented of wrong. Repentance is the decision to turn from selfish desires and seek God. It is a genuine, sincere regret that creates sorrow and moves us to admit wrong and desire to do better.
It’s an inward conviction that expresses itself in outward actions.
You look at the love of God and you can’t believe he’s loved you like he has, and this realization motivates you to change your life. That is the nature of repentance. — Walking with the Savior / Lucado, M., & Gibbs, T. A. (2000). Grace for the moment : Inspirational thoughts for each day of the year (217). Nashville, Tenn.: J. Countryman.