I was raised catholic, too. When I was ten, I told my mom I didn't believe in god any longer and she dragged me off to see a priest so that he could "prove" to me there was a god. She couldn't believe it when he told her he couldn't prove it! My mother never questioned the existence of god.
Anyway, I never got confirmed as a result and I remember scouring my brain for "sins" I'd committed when I was seven...seriously, how bad can you be at that age?