By Amanda Markel Dear Teenage Girls: There are so many things I want to tell you. So many things I wish somebody had told me. I was your age not that terribly long ago, so I remember! Here are just a few things I want you to know, things I think will help you navigate the choppy waters of being a teenager in high school: Go to church—I know, some people will say it’s “not cool” to go to church. People who say that aren’t your friends, and they’re flat-out wrong. Every chance you get to receive God’s gifts, to remember your baptism, and to gather with your church family,…