Daniel, is the below helpful for you?
https://www.scripturecatholic.com/catholic-faith/"What Church? Scripture reveals this Church to be the one Jesus Christ built upon the rock of Saint Peter (Matt. 16:18). By giving Peter the keys of authority (Matt. 16:19), Jesus appointed Peter as the chief steward over His earthly kingdom (cf. Isaiah. 22:19-22). Jesus also charged Peter to be the source of strength for the rest of the apostles (Luke 22:32) and the earthly shepherd of Jesus’ flock (John 21:15-17). Jesus further gave Peter, and the apostles and elders in union with him, the power to bind and loose in heaven what they bound and loosed on earth. (Matt. 16:19; 18:18). This teaching authority did not die with Peter and the apostles, but was transferred to future bishops through the laying on of hands (e.g., Acts 1:20; 6:6; 13:3; 8:18; 9:17; 1 Tim. 4:14; 5:22; 2 Tim. 1:6).
By virtue of this divinely-appointed authority, the Catholic Church determined the canon of Scripture (what books belong in the Bible) at the end of the fourth century. We therefore believe in the Scriptures on the authority of the Catholic Church. After all, nothing in Scripture tells us what Scriptures are inspired, what books belong in the Bible, or that Scripture is the final authority on questions concerning the Christian faith. Instead, the Bible says that the Church, not the Scriptures, is the pinnacle and foundation of the truth (1 Tim. 3:15) and the final arbiter on questions of the Christian faith (Matt. 18:17). It is through the teaching authority and Apostolic Tradition (2 Thess. 2:15; 3:6; 1 Cor. 11:2) of this Church, who is guided by the Holy Spirit (John 14:16,26; 16:13), that we know of the divine inspiration of the Scriptures, and the manifold wisdom of God. (cf. Ephesians 3:10).
You can also take a look at this if you're interested:
https://www.scripturecatholic.com/the-biblical-church/ But it may be easier and wiser just to trust that the Church is guided by God, and teaches us the way to salvation.
"Mark 3:16; John 1:42 – Jesus renames Simon “Kepha” in Aramaic which literally means “rock.” This was an extraordinary thing for Jesus to do, because “rock” was not even a name in Jesus’ time. Jesus did this, not to give Simon a strange name, but to identify his new status among the apostles. When God changes a person’s name, He changes their status.
Gen. 17:5; 32:28; 2 Kings 23:34; Acts 9:4; 13:9 – for example, in these verses, we see that God changes the following people’s names and, as a result, they become special agents of God: Abram to Abraham; Jacob to Israel, Eliakim to Jehoiakim, Saul to Paul .....
(later on)
"“Peter, who is called ‘the rock on which the church should be built,’ who also obtained ‘the keys of the kingdom of heaven…’” Tertullian, On the Prescription Against the Heretics, 22 (c. A.D. 200).
“And Peter, on whom the Church of Christ is built, against which the gates of hell shall not prevail…” Origen, Commentary on John, 5:3 (A.D. 232).
“By this Spirit Peter spake that blessed word, ‘Thou art the Christ, the Son of the living God.’ By this Spirit the rock of the Church was established.” Hippolytus, Discourse on the Holy Theophany, 9 (ante A.D. 235).
“’…thou art Peter and upon this rock I will build my Church’ … It is on him that he builds the Church, and to him that he entrusts the sheep to feed. And although he assigns a like power to all the apostles, yet he founded a single Chair, thus establishing by his own authority the source and hallmark of the (Church’s) oneness…If a man does not fast to this oneness of Peter, does he still imagine that he still holds the faith. If he deserts the Chair of Peter upon whom the Church was built, has he still confidence that he is in the Church?” Cyprian, De Unitate Ecclesiae (Primacy text), 4 (A.D. 251)."
https://www.scripturecatholic.com/the-biblical-church/#I_Peter_is_the_Rock_on_which_the_Church_is_Built-2