One other thing I thought of, since she eats healthy and she is homeschooled: does she have a journal she can write in to help her work through and maybe organize her thoughts? Even when I'm not in therapy (it sometimes helps to show an occasional journal entry to the therapist and talk about it), it helps me. Mari McCarthy has some helpful exercises, and Mary Ellen Copelend's Wellness Recovery Action Plan (WRAP) program can be helpful too.
http://www.createwritenow.com - Mari McCarthy
http://www.mentalhealthrecovery.com/wrap/ If you are interested in WRAP, I am a WRAP Facilitator (which means I can help you write your own WRAP) and if you send me a private message I'll help you out at no charge. (If you're not interested, that's fine too of course! I just wanted to give you the option.)