Let's focus on your relationship with the Mosaic covenant as a Gentile in Barbados: You never had this covenant from Mount Sinai. Ephesians 2 describes your relationship this way:
11 Therefore remember that you, once Gentiles in the fleshwho are called Uncircumcision by what is called the Circumcision made in the flesh by hands 12 that at that time you were without Christ, being aliens from the commonwealth of Israel and strangers from the covenants of promise, having no hope and without God in the world. 13 But now in Christ Jesus you who once were far off have been brought near by the blood of Christ.
14 For He Himself is our peace, who has made both one, and has broken down the middle wall of separation, 15 having abolished in His flesh the enmity, that is, the law of commandments contained in ordinances, so as to create in Himself one new man from the two, thus making peace, 16 and that He might reconcile them both to God in one body through the cross, thereby putting to death the enmity. 17 And He came and preached peace to you who were afar off and to those who were near. 18 For through Him we both have access by one Spirit to the Father.
You simply cannot ignore the transition between 'at that time' and 'but now'. The time element showing the end of the Law's tenure is the transition from the old covenant you never had and the new covenant in the Blood of Christ. During the former covenant's tenure the Blood of Christ wasn't available to you. Or anyone, for that matter.
Hebrews 9
13 For if the blood of bulls and goats and the ashes of a heifer, sprinkling the unclean, sanctifies for the purifying of the flesh, 14 how much more shall the blood of Christ, who through the eternal Spirit offered Himself without spot to God, cleanse your conscience from dead works to serve the living God? 15 And for this reason He is the Mediator of the new covenant, by means of death, for the redemption of the transgressions under the first covenant, that those who are called may receive the promise of the eternal inheritance.
Jesus doesn't mediate the covenant from Mount Sinai that was mediated through Moses. That was the 'first covenant' He took away according to Hebrews 10:9.