Sometimes the right kind of sad can help, even when you yourself are sad. I kept seeing this one bandied about on Twitter, and it turns out my library has a copy, so I was able to get to it sooner rather than later. I’m glad I did. The Miseducation of Cameron Post is a bittersweet book, definitely a coming-of-age story, about the eponymous character’s struggle with being a lesbian in a rural, conservative Christian…