God is less concerned about what you have done in the past than what He plans to do through you in the future.
Take a moment and thank Christ for the gift of grace which frees you from your past. With the burden of past sins removed, go forth with renewed vigor to serve God.
If these are yours and increase in abundance, they will keep you from being idle or unfruitful in the knowledge of our Lord Jesus Christ. Anyone who lacks them is blind and shortsighted, forgetful of the cleansing of his past sins.
2 Peter 1:8-9 (NABRE)