Picture this: it’s 2012, you’re in bed scrolling through Tumblr on your laptop. “Primadonna” by Marina and the Diamonds is blasting. You’ve just learned Dan Humphrey is Gossip Girl. Scrolling and reblogging, in between Jeffrey Campbell Litas and romantic “Chair” (Chuck & Blair) edits, you spot a closeup of Chiara Ferragni clutching a Proenza Schouler…| Miss Yana Cherie