My parents had divorced when i was very, very little. I went to Catholic Mass on the weekends I was with my dad and I went to Baptist, then Episcoalian, then Methodist services on the weekends with my mom (haha, not all in one day, they changed over the years). I basically had the idea that all denominations were the same, they just had different styles of worship, but it was all a matter of personal preference.
As I got older, I began going to Mass exclusively, basicaly because I liked the style better--the liturgy. The Episcopalian's were similar, but by that point no one in my family went to an Episcopalian service. The Methodist and Baptist services I went to seemed more like shows to me (I'm not saying all are like that, but these seemed like that to me.).
Anyway, looking back, I really didn't know what Catholic beliefs were really. I thought the Eucharist was symbolic, I never went to confession--I mean, hey, I can confess to God right?--I had no clue what Purgatory was, I thought the Immaculate Conception referred to Jesus, I assumed the Bible was the sole rule of faith, I had never heard of the Assumption of Mary, I had no idea anyone claimed to be infallible etc., etc. etc. I was your average poorly catechized Catholic
So, moving on, a friend of mine sent me some Rosary beads and suggested I pray it. So I read up on how and I prayed it one day. Then, I prayed it the next day. Then the next. And so on. I began to feel this need to get to confession. So I did. Then, I developed this hunger to learn as much as possible. So, I read the Bible, the writings of the Early Church Fathers, about the history of Christianity, and articles arguing for and against the various theologies--Catholic, Orthodox, and the various protestant views. And the more I read, the more I realized I was right where I needed to be.
To be honest, everything just seemed so obvious to me--it was like scales had fallen off my eyes. I think the daily meditating on the life, death, and resurrection of Our Lord really helped me a lot.