When the devil reminds you of your past and try to make you feel disappointed in your life.Smile and remind him of his future,his future is hell fire,even though you may not have accepted Christ into your life,it is not too late,you can do that now,but the devil has no chance to repent,neither can he be forgiven.So beloved,LET YOUR PAST PASS SO THAT YOU DON'T PASS WITH IT.The devil can play with your mind,but cast down all such imaginations IN THE NAME OF JESUS.2nd Corinthians 10:5.