First, never use the word failure. it's too negative. We all do the best we can. Just the decision to be banded is a positive sign.
Second, I'm curious to know what kind of band you have. I was banded in 2007. I've lost about 60 pounds, which is considered a moderate success. It's okay, but not nearly as good as I had hoped. Like you, I found it difficult to do. My doctor moved away not long after my surgery and when I finally (don't ask) found a center in NYC that does fills (NYU, by the way), I was told that the band I had--the VG band--was not successful and is no longer used. The original bands developed in Europe were successful in re weight loss, but caused a lot of throwing up and other problems. The VG band was designed to be more flexible and have a wider opening. This reduced the vomiting, hernias, etc., but people were not as successful with weight loss. A newer, smaller band is now used. My fill doctor said that he has replaced a lot of the VG bands with newer ones for people who have had difficulty losing weight with the VG. Of course, none of this was known in 2007 and I had no reason to question the kind of band my surgeon used. So, first of all, do you have a VG band? This may be part of your problem. Also, with all of the forums and comments at this site, I've never seen one discussing the VG band and its problems. Some of the long-term bandsters would have the VG. Is anyone out there familiar with the VG problems? Has anyone had the VG replaced with a newer band?
P.S.: For bandsters looking for fills in NYC, NYU is a center of excellence for bariatric procedures and they will see patients for fills and follow-up who did not have the surgery there. You'll need your operative report and an esophogram. It's a very busy practice, so bring somethng to read in the waiting room. Everyone I've seen at the practice has been very nice. They take most insurance plans, including Medicare.