You've already received some great advice, but here's mine.
-If your therapist/psychologist isn't working for you, I'd switch. It isn't like a one size fits all deal. I've been to enough to know.
-Maybe join a support group? I believe that they exist for eating disorders, and it may help to hear other people's stories and have people surround you who understand
-I don't know how helpful it would be, but have you read literature (auto-biographies, self-help books) for ideas on how to overcome anorexia? They shouldn't substitute but supplement what the doctor and psychologist are doing.