I understand that some may have a difficult time letting the past go and moving on. Here is a verse that helped me tonight:
Isaiah 1:18 (KJV)
Come now, and let us reason together, saith the Lord: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.
Jesus is all we need. And we can choose to forget about us and focus on what He did for us. He alone has taken away our sins, covered them completely in His precious blood!