Grace governs us rather than the Law. Galatian Christians chose to go back to the old legalistic ways because they were unaware of the freedom found in Christ. We, on the other hand, are no longer subject to the curse of the Law. Instead, we are under the law of the Spirit of life in Christ Jesus, who has freed us from the law of sin and death through our faith in Him.
The penalty for all sin was paid by the death of Christ, which included condemned sin in the flesh. It is a gift to all of us. There is nothing we need to do to earn it. We must simply believe that Christ took care of everything for us and paid the price for our sins in full. As a result of Christ's sacrifice on our behalf, we are fulfilling God's holy Law. Because of this sacrifice, we were born of the Holy Spirit of God and do not walk in accordance with the flesh. 
We must not turn this wonderful freedom we have in the Lord Jesus into an opportunity to indulge in sin. Freedom to sin is not at all freedom because it enslaves us to Satan or our sinful natures. We should use our God-given freedom to serve others and share His everlasting love with people around us to glorify Him.

Dear Heavenly Father, I am so grateful for Your sacrifice. I am so grateful that You have gifted me with something I could never possibly earn. The liberty I feel in You is refreshing in a world where most things have to be earned. Thank You for the freedom I have in Jesus. Help me use the freedom wisely and only do what pleases You. I want to obey your commandments not out of fear, but out of sheer appreciation of your goodness. 
In Jesus’s name I pray. Amen.