You still do not get it, and you never will untill you take these things before Jesus, your flesh will always sin, He didnt come to save your flesh The enemy will have your head in a spin over sin because it will keep you in bondage. Jesus died for us because He knew we are not perfect, we cannot perfect ourselves, it is impossible for us to "not" sin, Jesus paid teh price for sin, so you wont get all guilty when you mess up.
Rom 4:3 For what saith the scripture? Abraham believed God, and it was counted unto him for righteousness.
Rom 4:4 Now to him that worketh is the reward not reckoned of grace, but of debt.
Rom 4:5 But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness.
Rom 4:6 Even as David also describeth the blessedness of the man, unto whom God imputeth righteousness without works,
Rom 4:7 Saying, Blessed are they whose iniquities are forgiven, and whose sins are covered.
Rom 4:8 Blessed is the man to whom the Lord will not impute sin.
Your sins are only covered as long as you dont work and as you said, abide ( rest ) in Him.
In all His Love