Bulimia

I have been suffering from bulimia since 4 years and I have tried to help myself alot by going to a counselor and getting a help. Now she advised me to go to a nutritionist and I will 2moro however I don't think it's going to work because I lack of control when it comes to binging on food and purging them. I really want to help my self but am failing to do so. Any suggestions that my help?