At 23, I was just your typical Manhattan-dwelling girl, living the dream with a fifth-floor walk-up and two rowdy roommates. As a young editor at Elle, my life was rich in experiences and opportunities, poor in cash and stability, and filled with uncertainty—plus the hope that someday I’d have it all figured out. Or at least mostly figured out. Now, a decade-plus later, I still have zillions of things I’m trying to learn, but along the way I’ve also mastered a few. Some are serious and some are silly, but one thing’s certain: I wish I’d learned them all earlier!