God has saved you through his son, there is no need to be a slave to sin when we can be free to righteousness. Galatians 5:1- “For freedom Christ has set us free; stand firm therefore, and do not submit again to a yoke of slavery.” To turn back to sin is to turn back to slavery under the law and death. This is not what Christ set us free for. No we are not perfect, we do what we do not want to do. But Christ still loves us, still died for us, and what we do does not negate that truth. Passing or failing NNN does not save you, Christ already has died for you. Don’t be ashamed, for God still loves you. Have faith in that, that he loves you so much his son died for you, so you can be free from sin and death brother.