Would you disagree with me, if I proposed that when Jesus said that he came to fulfill the law, the emphasis is now in Jesus instead of the law?
Isn't that's the point Paul makes in Gal. 3?
If you follow this train of thought, then the function of the law has changed. It's not anymore a law to salvation, it has now a different function as it still exists, having not been abolished.
So the question is, what is the function? Perhaps it should be discussed in another thread.
The law is definitively worth following, but I'm afraid that's all I can say.