The first thing to know about faith in God is that it is given by God. Romans 12:3 "each according to the measure of faith that God has assigned". From this we know that it is God that gives the faith (not man) and that He has sovereignly given a portion to each He has given it.
With this Faith, we can exercise it, acting upon our relationship with Him (though the Love He has implanted) in the doing of His will. But instead of cringing at the law, we now love it since we love Him who made it and out of that love obey Him and "Love one another" as the Lord Jesus Christ gave commandment.
The law still convicts us and is most useful in the examination of ourselves (particularly before communion) which leads us to repentance. But the law is not the start of the Christian life, but it is faith.
Again, I remind you "whatever does not proceed from faith is sin" Romans 14:23 "For the Righteous shall live by Faith" Romans 1:17 Also forget not the Curse "For all who rely on works of the law are under a curse; for it is written, "Cursed be everyone who does not abide by all things written in the Book of the Law, and do them." Galatians 3:10. For those who rely on the Works of the Law (rather than Faith) do err.