I highly encourage you to do your own research on the history of our Church. That way you can stand your own ground and be confident in what you believe in.
For now, I’d like to remind you of the fact that a lot of things that Catholicism is being criticised for by Protestants are things that exist in Eastern Orthodoxy, Oriental Orthodoxy and the Assyrian Church of the East - four big Churches that all existed before the schism. We all have origins in that first early Church and we have all inherited things from it that Protestants have rejected. Think about it this way: we’ve been separated from the Coptic Orthodox Church since the 451 A.D - that’s 1, 561 years and yet we have much, much, much more in common with them than with Protestants. Like the worship in the Jewish temple which used incense and liturgies and set forums, we all use holy water, holy oil, incense, candles, chanting, holy images, infant baptism, liturgical calendars, veneration of saints, etc. Furthermore, all of us believe that these developments which we all share in common and have safeguarded throughout all the centuries are legitimate and organic developments that are inspired by the Holy Spirit:
“Upon this rock, I shall build my church and the gates of Hell shall not prevail against it.” Matthew 16:18
“I have much more to say to you, more than you can now bear. But when he, the Spirit of truth, comes, he will guide you into all the truth.” John 16:12-13.
“I am with you always even until the end of the time.” Matthew 28:20
The Church as a whole cannot apostatise and the Holy Spirit leads her to grow, like a seed into a beautiful flower. The Protestant Reformation was reacting to legitimate corruption in the Catholic Church but went too far in the extreme and began to attempt to turn the flower back into a seedling. Now you have Protestant Churches who believe things and practice things that the original Reformers would have considered unthinkable and downright heretical. Martin Luther for example believed in the Real Presence - he was just down on the sacrificial aspect of the Mass. Martin Luther believed that Mary was truly the Mother of God. Martin Luther’s Mass is even more conservative than the modern Novus Ordo Mass - he thought it was “too” progressive to even pull the altars away from the walls and have priests look at the people.
The Bible is a part of Church Tradition - it took us centuries to figure out what’s definitively part of the Biblical canon and what’s not. And even once we did figure it out, the vast majority of the laity was illiterate so even the Bible was Oral Tradition for even more centuries after that - people relied on icons, stained glass windows, statues and Church art and architecture to teach them about the faith. People relied on the Mass to listen to the Scriptures read out loud. I’m going to give you a Youtube video on the history of the Bible but it’s told from an Orthodox perspective but Catholics should have no problem with it.
Part 1 - The Old Testament :
youtu.be/p7H6wJ43K_s
Part 2 - The New Testament :
youtu.be/5ztfwfS6FEc
Part 3a - Development of the New Testament :
youtu.be/wpmHZzURwZY
Part 3b - Development of the New Testament :
youtu.be/yVEM-vZXWOI
Part 4 - Refuting Sola Scriptura :
youtu.be/tpMEJNLp0Cw
Try and watch it all rather than skipping to Part 5 because you need context to really understand.