I think that I disagree with you here, brother.True! But we can't live up to that perfection in this life. We will at the resurrection, our salvation will be made complete then.
While we cannot live up to the letter of the law, the spirit of the law is a different story (Romans 7:6).
If we walk according to the Spirit, the righteousness of the law is fulfilled (practically) within us (Romans 8:4).
That means that we do not commit sin (1 John 3:6,9).
And this is something that can be true in us for the rest of our lives (Luke 1:74-75; 1 John 3:6, 1 John 2:17).