Good Enough by Jen Petro-Roy

Before she had an eating disorder, twelve-year-old Riley was many things: an aspiring artist, a runner, a sister, and a friend. But now, from inside the inpatient treatment center where she's receiving treatment for anorexia, it's easy to forget all of that. Especially since under the influence of her eating disorder, Riley alienated her friends, abandoned her art, turned running into something harmful, and destroyed her family's trust.