Request #146

 I am looking for YA book from the 80’s (possibly 70s?) that is a coming–of-age book about a girl who feels like she is in the shadow of a perfect older sister. She takes the sister’s bathing suit, which is way too big on her, to impress a boy who is going to teach her to swim and she tries to dry-shave her armpits and ends up cutting them and bleeding. She almost drowns at the end of the book and the boy saves her. I thought this was Jacob Have I Loved but recently discovered it is not the same book!