Singer Stephanie Poetri shares her “first” everything with Teen Vogue! Did she hop off the plane at LAX with her dreams and a cardigan her first time in Los Angeles? Who does she text first when something cool and exciting happens? What’s it like living on her own for the first time? How many views did Stephanie's first YouTube video “HELLO YOUTUBE” get? What happened to her first cat, Gravy? How did she feel when she first heard her music on the radio?