Let me show you what I mean:
Ezekiel 36:26 "A new heart also will I give you, and a new spirit will I put within you: and I will take away the stony heart out of your flesh, and I will give you an heart of flesh. 27 And I will put my spirit within you, and CAUSE YOU TO WALK IN MY STATUTES, AND YE SHALL KEEP MY JUDGMENTS, AND DO THEM."
This is the explicitly stated purpose of the new covenant. God will make them obedient. Is God making you obedient? According to your own admission, this plainly isn't the case at all. Therefore you are not under this covenant. God has not placed his law inside your heart yet. You're just like anyone else who has yet to receive this new heart.
Again, those who do receive this new heart "shall keep [God's] judgements, and do them"
That is what separates the Old Covenant from the New. The Old Covenant could never prevent anyone from sinning. Even the sacrificial system couldn't keep people from sinning, yet it is Christ's sacrifice which does exactly that to those who are able to receive him, and become a new creation created for good works.