In Proverbs 3:5-7, we have a choice of whether we are going to lean on our own understanding of right and wrong by doing what is right in our own eyes or western we are going trust in God with all of our heart to correctly divide between right and wrong through obeying His instructions in all of our ways and He will make our way straight, and this is what it means to be declared righteous by faith. So when someone does what is righteous in obedience to God's instructions, then the significance of their action is not that it is part of what they are required to do first in order to become righteous, but rather the significance is that they are expressing faith and it is by that faith that they are declared righteous.
In Habakkuk 2, it contrasts the righteous who are living by faith with those who are not living in obedience to the Mosaic Law, and in Isaiah 51:7, the righteous are those on whose heart is the Mosaic Law, so the righteous living by faith does not refer to a manner of living that is not in obedience to God. Likewise, in 1 John 3:7, whoever does what is righteous is righteous even as they are righteous. It is is contradictory to think that we should have faith in God, but not in His instructions.
No, in Deuteronomy 30:11-20 it says that God's law is not too difficult to obey and that obedience to it brings life and a blessing while disobedience brings death and a curse, so choose life! Moreover, Romans 10:5-10 references Deuteronomy 30:11-20 as the word of faith that we proclaim and there are many other verses that repeatedly say that obedience to God's law is the way to be blessed while refusing to obey it is the way to be cursed. Our salvation is from sin (Matthew 1:21) and it is by the Mosaic Law that we have knowledge of what sin is (Romans 3:20), so living in obedience to it through faith in Jesus is intrinsically part of the gift of Jesus saving us from not living in obedience to it, and those who deny that we are obligated to obey the Mosaic Law are denying that they need salvation from transgressing it.
The Mosaic Law is the way (Psalms 119:1-3), the truth (Psalms 119:142), and the life (Deuteronomy 32:46-47), and the way to see and know the Father (Exodus 33:13), and Jesus set a sinless example for us to follow of how to walk in obedience to the Mosaic Law, so he is the embodiment of the way, the truth, and the life, and the way to see and know the Father (John 14:6-7). Us embodying God's word through following the example of the one who is the embodiment of God's word is not a different way to the Father, but rather that is the way to the Father.
In Romans 6:19-23, we are no longer to present ourselves as slaves to impurity, lawlessness, and sin, but are now to present ourselves as slaves to God and to righteousness leading to sanctification and the goal of sanctification is eternal life in Christ, which is the gift of God, so obedience to God's law is the content of His gift of eternal life, yet you are interpreting Romans 7:4 as saying we need to die to God's law, which would be rejecting His gift of eternal life. Moreover, in Romans 7:1-3, at no point was the woman set free from needing to obey God's law, so there is nothing that builds to the point in 7:4 that in the same way we have been set free from God's law. God's word is His instructions for how to be joined with God's word made flesh, so it would be absurd to think that we need to die to God's word in order to do that, but rather we need to die to a law that was hindering us from obeying God's law, namely the law of sin. Likewise, God's law is His instructions for how to bear fruit for Him, so it would be absurd to interpret that as saying that we need to die to God's instructions for how to bear fruit for Him in order to be free to bear fruit for him, but rather, we would need to die to a law that was hindering us from obeying those instructions, which again is the law of sin.
We can't trust God's word made flesh by refusing to follow God's word, but rather that is the way to refuse to trust him.