"Therefore there is now no condemnation for those who are in Christ Jesus. 2 For the law of the Spirit of life in Christ Jesus has set you free from the law of sin and of death. 3 For what the Law could not do, weak as it was through the flesh, God did: sending His own Son in the likeness of sinful flesh and as an offering for sin, He condemned sin in the flesh, 4 so that the requirement of the Law might be fulfilled in us, who do not walk according to the flesh but according to the Spirit."
Yes, we are now called to obey a law of love. Do we do that perfectly?
1 John 1:8
8 If we say we have no sin, we deceive ourselves, and the truth is not in us.
You may believe that you have always confessed everything perfectly if you wish. I suspect that believing one can do anything perfectly is a sin in itself, because it's pride.