I think there is a slight confusion here...
The Mashiah said he did not come to destroy the law, but to fulfill it.
That does not make the law to no effect.
The requirement of the law is death for the transgression of the law.
It is appointed to man once to die, then comes the judgement to life, or to the second death, from which there is no resurrection.
Our Father in the shamayim (heaven/s), Yahuwah, sent His only Bĕn (Son), who paid the price setting us free from the law of sin and death by His own offering and sacrifice, whereby all we have to do is believe in Him, asking for His forgiveness, and asking Him into our heart and life as our Master. When this happens, Yahuwah no longer sees our sins as we have asked forgiveness for, but sees the final sacrifice made for us though Yahushua. It is in Him that we have life, and life everlasting. There is no other way.
The law of sin and death was also made the law of life in the Ruah (Spirit), and we are no longer to attempt to serve that law in the flesh or mind, because those are at enmity against Elohim, but rather in the Ruah of Yahuwah who resides in us. He is our Intercessor and High Counselor before the throne of Elohim, and if He is who is for us, then who can be against us?