I have an Eating Disorder. Urgent help for therapy?

How are you paying for a therapist if you can't afford a book? I guess you should tell your therapist that you can't afford it and tell her your mom doesn't know. I 100% guarantee you she will STRONGLY try to persuade you into telling your parents about your eating disorder.. trust me I know, I've had one, gone to therapy, had the same thing happen to me.