So glad to hear this. I would say that if you want to convert, RCIA is a great place to start however you are not an adult. I would still talk to a priest if possible and make friends who would gladly take you to mass.
The Catholic Church is the One True Church and I would just say that there are many sources to help you grow in your faith: this website, all of the catholic youtubers (Trent Horn, Matt Fradd, Coming Home Network, Catholic Answers, and so much more), and many other catholic websites.
Learn everything that Catholicism has to offer, prepare yourself to convert, ask questions, look for answers, and when the time comes you will be more than ready to convert and serve out your faith. That being said, there is nothing preventing you from going to mass, saying the rosary, learning about the saints, reading the catholic bible, reading the catechism, praying daily, going to holy adoration.
Though you cannot receive the sacraments just yet, just start living like a Catholic and the Lord will surely help you. Don’t forget about asking the Mary the Mother of God, the Angels and Saints for their intercession on your behalf. Pray for the souls in purgatory, pray for your family to understand, etc.
You put in the work, God will make it happen. Be patient, and trust in God’s plan. Whether it takes a couple years, or sooner.