You are interpreting God's word as speaking against following God's word, so you should have an awareness that the way that you are interpreting God's word is fundamentally flawed. You have not correctly identified the problem that Paul had with the Judaizers, moreover, you are compounding your error by considering the Gospel that Jesus and Paul taught to be a false Gospel.
In Matthew 4:15-23, Jesus began his ministry with the Gospel message to repent for the Kingdom of God is at hand, which was a light to the Gentiles, and God's law was how his audience knew what sin is (Romans 3:20), so repenting from our disobedience to it is a central part of the Gospel of the Kingdom, which is in accordance with Jesus being sent in fulfillment of the promise to bless us by turning us from our wickedness (Acts 3:25-27). Furthermore, Christ set a sinless example of how to walk in obedience to God's law, and as his followers we are told to follow his example (1 Peter 2:21-22) and that those who are in Christ are obligated to walk in the same way he walked (1 John 2:6). So Jesus spent his ministry teaching his followers to obey God's law by word and by example and you should have an awareness that interpreting Galatians as speaking against following Christ is fundamentally flawed.
In Acts 14:21-22, Acts 20:24-25, and Acts 28:13, Paul also taught the Gospel of the Kingdom/Grace with support from God's law, which is in accordance with Romans 15:18-19, where he fulfilled the Gospel by bringing Gentiles to obedience in word and in deed. Moreover, Romans 10:16, 2 Thessalonians 1:8, and 1 Peter 4:17, all speak against those who do not obey the Gospel.
In Psalms 119:29-30, he wanted to put false ways far from him, for God to be gracious to him by teaching him to obey His law, and he chose the way of faith by setting it before him, so this is what it means to be under grace, not the way to fall from it, and this has always been the one and only way of salvation by grace alone through faith alone in Christ alone. It would be absurd to interpret that as him wanting God to be gracious to him by teaching him how to fall from grace.
