Restriction: Finally here, now what?---So want to give up

My band just had her three year birthday. I had her fixed for the second time in Oct. 2014. She is restricted, but man my willpower sux. I hit that three mark, stepped on the scale 10 pounds less than the birth of my band. Up until the the secound corrective surgery I had done great with my diet. I never drank pop, I limited myself to the amount of sugar I had daily. Then suddenly I felt like a failure at this. I still fill like a failure. To the point that now I am being the failure. The band is finally working correctly and I have given up after three years of trying hard to loose it with NO progress (keep in mind during the three years I have had a total of four months being in the sweet spot due to repeated band failure). I am so grateful for the surgeon to repair the band twice at no cost to me. Now, here I am screwing up and have no willpower left. I want it, but I don't "see" it happening for me at this point.