I was raised Roman Catholic and Southern Baptist at the same time. I was baptized Roman Catholic in secret by my mother as my Southern Baptist father refused to allow this, even though promising my mother that she could raise any children as Roman Catholic if or when they came.
My parents divorced when I was 2 years old, and after that my father left town, but his parents lived in town and would take us to their Southern Baptist church when my mother worked on the weekends. When my older sister was about 6 years old, she decided she wanted a "believer's baptism" and to give her life to Jesus according to the ritual forms of that sect, and my mother was shocked that my grandparents supported it, presumably because she was already baptized, although I don't know if they were or are aware of that fact, but I'm sure they would have rejected it as being "valid" in their framework.
Anyway, after that (when I was about 5) we started going to Roman Catholic Mass every weekend, as my mother could see that the mixed religious upbringing wasn't a good thing. So from ages 5 to about 13, I went to Mass weekly, and vaguely remember going to either Sunday school or some kind of catechism or something like that. I also remember that we watch the musical "Jesus Christ Superstar."
I really didn't understand too much, but I was a child, so what can you expect? I'm sure they did a great job, I was just pulled out at the wrong time.
At age 14 I had to go live with my dad for getting into a lot of trouble and ended up dedicating my life to Jesus in a personal way, with deep inner commitment, when I was 15 in the Southern Baptist Church.
Looking back on things, I can clearly see that I was an open book to their teaching. They had wonderful hearts and a great love for God, but at the same time they poisoned me against the Roman Catholic Church. I didn't know how I felt about it, and they managed to tell me how I felt about it.
Add on a decade of a million sects and theological considerations, a kind of despairing reluctant agnosticism for a couple of years, and then God brought me to Orthodoxy. (I'm skipping over this huge part of my life because of the focus of the thread with Roman Catholicism, and because I've mentioned it numerous times in other threads. This were my Protestant, Agnostic, Esoteric Whateverism, Metal/Occult/Theistic Satanism dabblings, etc. years)
The Orthodox Church and the books I have been reading since stumbling into it have really given me a deeper understanding of Apostolic Christianity. I even briefly considered "returning to Rome" (even though I had personally never "confirmed" my being there), I didn't try too hard because I bought into the Orthodox apologetics against Papal Infallibility, and I still don't think he has a rightful claim to universal jurisdiction. Since I couldn't admit that from the start, I didn't really even bother getting into filioque issues, purgatory, etc. But I did attend one traditional Latin Mass as well as a Ruthenian "Byzantine" Catholic Church, but never had a serious conversation with a priest over the issues. I had a sense of confirmation and resolution in my soul concerning where God had led me, and it was to my particular Orthodox parish community.
Orthodoxy has brought me so much closer to Christ and my life has been completely transformed beyond anything I could imagine. This is not at the expense of my Roman Catholic upbringing, and I really don't see myself as a Roman Catholic who converted to Orthodoxy, because I never really understood it (which was NOT the fault of the Roman Catholic Church, I was just too young and it wasn't cultivated at home by my mother). I wasn't devout at any point, nor ever loving God in my heart in a real way.
From everything I have come to learn about Roman Catholicism and mainly the people and saints in their church, I feel nothing but gratitude for the foundation it provided for me. Those deep roots all came back at my first Orthodox liturgy. I knew the Creed (well, with a few extra words), I recognized vestments, an altar, consecration, etc. It all came flooding back to me in a wonderful way.
I am at peace with the Roman Catholic Church in my soul. I have some disagreements over the above mentioned issues which prevents my being a part of that communion based on my current understanding of things, but I hope and pray that there is validity in their sacraments, and I think anyone who deliberately wishes the contrary might be full of pride in their church and lacking compassion. Why wouldn't we want them to have a "valid" Eucharist?
Anyway, hopefully I will learn more about that part of my upbringing as the years progress. I plan to attend a SSPX church down the road from me at some point when I am not so "newly" illumined, with my priest's blessing of course, if I can get it. I am mainly interested in the liturgical exposure, so I plan to do the same with the various Oriental Non-Chalcedonian liturgies available in my city. At some point I want to read a few books to help my head and heart to understand Roman Catholic spirituality, so I want to read writings of John of the Cross, Thomas Merton's Seven-Story Mountain, and any other suggestions.
I love all of the Christians who truly believe in Christ, and hope that all the divisions will be set right in the world to come, by the Lord's great mercy and compassion. May He guide us all to salvation!