There is a children’s book on this topic. I cannot remember the title.
It is about a teenaged girl who is expelled from a high dollar private because of something she didn’t do. The only school that will take her is a Catholic one that has a very strict dress and discipline code. She is upset at her secular, atheist parents for not standing up for her and making her go to that school. She decides that the best way to get back at them for putting her in Catholic school is to pretend to become religious which will mortify her parents. After a while she discovers that has stoped pretending.
It was a pretty well written book for teenagers
‘Leap of Faith’ by Kimberly Bradley.