Christ made the ultimate sacrifice for us at Calvary, and if we are unwilling to acknowledge that, no amount of sacrifices is going to be enough to turn away His wrath from our rebellion away from the Savior. If we think that we can earn our way, any one of us, by performing enough works to merit salvation of our own accord, that in itself discounts what Jesus Christ our Lord did for us on the cross when He shed His blood, far worthier than any act we could ever make, so that we didn't have to be sent to hell.
This is not to say bad of our devotion to Him as God's children. Indeed Peter writes, "Forasmuch then as Christ hath suffered for us in the flesh, arm yourselves likewise with the same mind: for he that hath suffered in the flesh hath ceased from sin;"
But at the same time, we should keep in mind that we will never be able to do enough things, so we should "count the cost" like our Lord said in Luke 14:28, and realize we have a need if we wish to be spared from the wrath of God against our own sin. This is why after all of the very hard sayings Christ told us we would be required to do in the Gospels, He concluded this matter by adding the following line from Matthew 19:26, "When his disciples heard it, they were exceedingly amazed, saying, Who then can be saved? But Jesus beheld them, and said unto them, With men this is impossible; but with God all things are possible."
So it is as the apostle Paul said, we are saved by grace through faith, and not of ourselves. Being then a child of God, one who knows that their sins are forgiven, they are covered by the blood sacrifice that Christ made for them, the saved person is given the opportunity to serve the purposes given from their now-acknowledged personal Lord and Savior Jesus, starting right away in this life. They now have the working of God in their lives like the apostle wrote,
"Being confident of this very thing, that he which hath begun a good work in you will perform it until the day of Jesus Christ:" (Philippians 1:6)
It is this confidence that can be ascribed to the concept that faith produces works in the life of the true believer. One who has already once and forever been positionally sanctified, (as according to the words of our Savior - "Verily, verily, I say unto you, He that heareth my word, and believeth on him that sent me, hath everlasting life, and shall not come into condemnation; but is passed from death unto life." - John 5:24) will go through a process of growing, or gradual/practical sanctification, in the faith.
Bottom line is, the best good works we could do are wretchedness in the sight of God our Savior, compared to the Son they are nothing. Our purpose is not to glorify our own works, but to glorify God above. And to hear the voice of God, and not to disbelieve but to trust in God's word - receiving it with gladness, as the crowd did in Acts 2 - is more to Him than sacrifice (1 Samuel 15:22 - "Behold, to obey is better than sacrifice"). God may work in our lives if we yield ourselves as instruments of righteousness after having believed the Savior, but at this point it is the grace of God working in us and not ourselves, as Paul pointed out exactly in 1 Corinthians 15:10, and therefore there is no cause for boasting. And we ought not to do many outward works for the impression it makes on man, by visibly appearing to fast, but we should do all things unto the Father, who sees in secret and will in His time make all things known. I hope that helps you out, and that you can believe the Gospel and come to a saving knowledge of Jesus Christ through hearing the Scripture, because it is the word of God.
OP anon, just let me know if anything here is unclear! God bless.