It is of the Lord's mercies that we are not consumed, because his compassions fail not. They are new every morning: great is thy faithfulness. (Lamentations 3: 22-23)
That sounds pretty good to me, starting every day with a clean slate. God isn't holding on to our list of mistakes, why should we? Don't fret and worry about the past, instead look to the future, strap on your shoes and set your feet on God's path. Today is a new day.