“For I through the law died to the law that I might live to God.”
There was a suspenseful movie I saw years ago called Double Jeopardy. It was about a person who found a way around the legal system by pretending they were dead so that they couldn’t be charged for the same crime twice, in this case, murder. Double jeopardy is a fifth amendment clause that prohibits anyone from being prosecuted twice for substantially the same crime. Paul was well aware of how this clause applies to the born-again believer. Paul knew that once his old self died off, he could not be charged again with the same sins since he had already been executed spiritually.
Christians will go through times in their walks when they are close to God, such as fervent prayer and scripture reading. And other times, they will not feel like they are growing because of bad choices, poor information, and just plain fear. But know this, Christ has died once for all our sins. There is no need for another trial, no need for another sacrifice, and no need to fear that we will be charged for the same sin that God already forgave when we repented and gave our hearts to Him. God holds the title to your life, and it has been paid in full, sins and all. If it means picking up your cross metaphorically each day, then do so. But know that your past sins died when you were reborn.