Forgive and forget is easy to say, but often hard to do. Sometimes the hardest person to forgive is yourself. A past decision, a hurtful comment, a missed opportunity; replaying the past can keep us from moving forward. The Way of Jesus is better, and it starts with forgiveness. Not only accepting God's forgiveness, not only forgiving others, not only accepting the forgiveness of others - but also forgiving the person you see in the mirror every day.
We all have a past - but in Christ, we can all have a better future.
You used to walk in these ways, in the life you once lived.
...forgive whatever grievances you may have against one another. Forgive as the Lord forgave you. Colossians 3:7 & 13