Mates, Dates, and Mad Mistakes

As soon as Mum dropped me off, I made a dive for the ladies room, where I trashed the sandwich she'd made me and reapplied my makeup. Mum really didn't understand. I couldn't possibly get up on stage in front of everyone looking like I was dressed for afternoon tea with my grandma.
Izzie is restless, and eager to be treated like an adult. So she decides it's time to make some changes. But the new Izzie comes with new problems. First there is Josh Harper, an older, cute-but-wild boy. Then there is her mother, who is opposed to every part of the "new Izzie."
How can Izzie learn about herself and what it means to be grown up -- without upsetting everyone along the way?