I don't know what sophmore means. It's not a term we use here. Does this mean you will be returning to school this Fall? If so, be persistent with that guidance counsellor and ask them for help. Most school divisions have on staff psychologists.

There are self help books out there. I recommend ones pertaining to CBT. Try to stick to books and workbooks that stress worksheets and assignments. These are more engaging than simply reading the information.

Check out your community for support groups. I recommend one that is for Mood Disorders as this will run the gammut of Depression, Anxiety, and even the issues you face regarding trauma. I am no expert here, certainly not on eating disorders but I wonder if improving upon your mood would in turn affect your relationship with food.