Rom 5:1 Therefore, since we have been justified through faith, we have peace with God through our Lord Jesus Christ,
Simply, a little faith! You are not guilty of sin but considered righteous by God by a little faith. Faith, not simply believing in God but believing and trusting Him. You are considered righteous by him who judges all. There is no higher court and no other judge.
He decided if you trust his Son. You will be free of guilt independent of your past. Simple trust in Jesus daily. It is your life to live in this acknowledgment daily. Love is exhibited by you due to this mercy. You extend it freely. Heaven is your promise and you are free from guilt and shame of your past. You live new in a life of faith in the Savior.