What is the theme of the book Wild Bird

Theme of wild bird by Wendelin Van Draanen

In her most incisive and insightful book yet, Wendelin Van Draanen, award-winning author of The Running Dream and Flipped, offers a remarkable portrait of a girl who has hit rock bottom, but begins a climb back to herself at a wilderness survival camp in the desert ... Eight weeks of survivalist camping in the desert.

Overcoming.

Explanation:

Wild Bird is about a girl who hits rock bottom and climb back, so it's pretty much about a overcoming situation, and improving once you touched deep bottom.