Adventures of a Supermom has a wonderful post regarding raising our precious teens. Although the "I have 3 days to corrupt my niece so there" post to her sister is a whole lot funnier ! All I could possibly think to add is one of my mother's favorite bible quotes, it gave her some peace during some real trials. There's a standard path a lot of us Catholic girls take. We confess our sins around 13 years old at our confirmations and rarely see a confessional again until we take our wedding vows, convenienty skipping a decade of sin. :X Works for us !
Proverbs - Chapter 22:6
Train a child in the way he should go, and when he is old he will not turn from it.