God doesn't want to erase your past, He wants to use it for His glory.

You are the light of the world. A town built on a hill cannot be hidden. Neither do people light a lamp and put it under a bowl. Instead they put it on its stand, and it gives light to everyone in the house. In the same way, let your light shine before others that they may see your good deeds and glorify your Father in heaven. - Matthew 5:14-16

Crown Jesus King

So whether you eat or drink or whatever you do, do it all for the glory of God. - 1 Corinthians 10:31