We have had some similar circumstances. In my youth I was very dedicated to Christianity. I was the first girl acolyte at our church, volunteered to teach sunday school, started the youth group, was the state representative from my youth group. Went to bible study, worked as a counselor at a christian horse camp for kids, I only listened to Christian music.... It was Amy Grant, Carment, and Petra mostly, but I didn't listen to normal music. I tried several different churches looking for the right fit when I realized that my own Episcopal Church was rather progressive and I was unlikely to find others like it. Tried four square and other community churches, but I began to feel adrift. I had gone to college to be in the ministry, but hated proselytizing, While I was in the Navy, I found a church group that met in homes and practiced through bible study and speaking in tongues, and prophesying several times a week. It was small groups and quite intimate. But they taught the bible differently than any others I had learned before, saying that the others were wrong in their interpretation... I have come to realize that this was a cult. I left when they told me that I had to get my husband to join or leave him for my soul's sake.... since he wasn't being the spiritual leader of the household... anyway... a few years after this... I had come to not believe anything anymore. Someone mentioned Wicca to me in 2001, shortly before 9/11. I had never heard of it before, but what she said appealed to me. But I never heard anything else about it until I was out of the Navy, attempting to go back to my original church which had changed, and I was going to school and my philosophy classes and Geology classes were causing me to rethink a lot of my past beliefs. I started working in a library, and saw the wiccan books... So I checked them out.... I was astounded at all the things that I already believed! All the things I had to put behind me but that I secretly believed and was told was wrong, like Tarot, and the psychic connection I had with my mom and sister, not to mention the bond I had with nature and the feeling I would get when I was in places like Crater Lake, or the Redwoods, or the Ocean. I debated all summer long about turning my back on christianity for good. I talked to anyone that would listen which was my neighbor, husband, mother, and student workers, (who if they didn't want to hear about it I would have not discussed it with them) Then I had to research something for work. Try to find some wiccan based magazines (which at the time was a big nothing available) but during my research I found Sacred Mists. I realized that I had seen their add a year before but hadn't acted on it then... So I told my mom I was going to check it out... see if it was good. a month later she joined me here, and 6 months later my sister did too. I had finally found my home and haven't left since. I wanted you to know that indeed, you aren't alone here!

Mine wasn't
quite as drastic. I grew up with devote Catholic parents. My sister became a Nun when I was 5 years old. Whenever my parents didn't have a babysitter which was at least once a month, I had to go to the convent and stay with the nuns so my sister could babysit me. That went on for 7
years until my sister fell in love with a priest and they both came out of their orders. While I was at the convent the nuns would always try to get me to join. That was never going to happen. I barely felt attached to the Catholic religion. A God that punished never made sense. I also saw plenty of things between the nuns and priest that went again their vows of celibacy so what was the point. When I was in HS, I was walking to the city bus, missed the school bus, and the walk was about about an hour. I was tired and saw a new bookstore that had opened with tables. So I originally went in just to sit down. It was a metaphysical store and I was 17 and very intrigued. I spent an hour with the owner and she explained so much to me about Wicca and I was hooked. It all made so much sense.
However,
I still had devote Catholic parents at home. I kept a couple of things in the drawers. Started with candle spells. It was the late 70s so they wouldn't think of anything if I lighted a candle. I went back to the bookstore on a regular basis, but sadly the shop closed within the year.
College was an eye opener, took a class about different religions and I realized I felt so disconnected from the Catholic religion, but nothing pagan was being taught. I just did my own research into Wicca and chose that. Unfortunately, I got married to a pretty devote Catholic and had to abandon Wicca during that time. After the divorce, I found my way back to it. I was practicing on and off, because at one point I had to go back home with my parents to help me with my son while I worked. After I moved out, I picked it back up for good, although I never told anyone in the family.