Need Help!!!

If anyone has any advise for me please let me know....I have been banded for almost 6 months and I have only lost about 25lb,and that was in the inital 2 months after surgery. My doctor says I must be eating too many carbs and drinking too much fluid during meals. At my last fill which was about a month ago he made me feel so bad that I am not sure I even want to go back. I am so discouraged and dissapointed. Has this happened to anyone else?