The Reinvention of Moxie Roosevelt — Elizabeth Cody Kimmel

Moxie Roosevelt Kipper is an ordinary girl with an extraordinary name, but that is about to change. She's starting boarding school, and it's time to reinvent herself--to become worthy of a name like "Moxie." So she tries a bunch of personalities to try to figure out which one suits her best. But she quickly loses track of who she actually is and who she's supposed to be at any given moment! And as Moxie deals with new friendships and new situations, she comes to realize that boarding school is not what it seems and she's not the only one who isn't what she claims to be.