But You're Still So YoungBy: Kayleen Schaefer One of . . . Vogue's Best of 2021 BuzzFeed's Most Anticipated 2021 The Week's Must Reads in 2021 PopSugar's "A Running List of the Best Books of 2021" From the author of Text Me When You Get Home, the acclaimed celebration of friendship, comes a timely and essential look at what it means to be a thirtysomething . . . and how it is more okay than ever to not have every box checked off. The traditional check list of becoming an