In Jeremiah 31:33, the New Covenant involves God putting the Mosaic Law in our minds and writing it on our hearts, so if you want nothing to do with obeying it, then you then you want nothing to do with the New Covenant.
I don’t see how you can think that when NT because it contains 1,050 commands, such as with the two greatest commandments or the things spoken against in Romans 1:26-32, 1 Corinthians 6:9-11, Galatians 5:19-21, and Titus 3:1-3, or do you think the we are permitted to do those things? The NT repeatedly calls for us to repent from our sins. Even if you think that Acts 15:19-21 contains an exhaustive list of everything that would ever be required of a mature Gentile believer, the that still involves following laws.
In Romans 1:17, it is quoting Habakkuk 2:4, which was written by someone living under the Mosaic Covenant, so that is not a difference under the New Covenant, especially because the context of Habakkuk 2:4 contrasts the just who are living by faith with those who are not living in obedience to the Mosaic Law. Further, in Isaiah 51:7, the just are those on whose heart is that Mosaic Law, so the just living by faith does not refer to a manner of living that is not in obedience to it. It is contradictory to think that we should live by faith in God, but not by faith in what He has instructed.
Pharisees are far from the only group of people who live by laws, rules, and religion, so that alone does make someone a Pharisee, nor is it the case that someone being a Pharisee means that they are a hypocrite. Furthermore, it would be absurd to think that the problem that Jesus had with the Pharisees was that they were obeying what God commanded them to do. Jesus set a perfect example for us to follow of how to walk in obedience to the Mosaic Law, so he was much more zealous for obedience to it than the Pharisees were and he never criticized them for obeying it, but he did criticize them for not obeying it or for not obeying it correctly. For example, in Mark 7:6-9, Jesus said that they were hypocrites because they were setting aside the commands of God in order to establish their own traditions. In Matthew 23:23, Jesus said that tithing was something that they ought to be doing while not neglecting weightier matters of the Mosaic Law of justice, mercy, and faith, so he was not opposing their obedience to the Mosaic Law, but rather he was calling them to have a higher level of obedience to it in a manner that is in accordance with its weightier matters.
The reason why we do not earn our justification as the result of obeying the Mosaic Law is not because it has ended, but because it was never given as a means of doing that, so that doesn’t mean that we shouldn’t obey it for the purposes for which it was given. Why do you refuse to acknowledge that there are translations that say that Christ is the goal of the law?