Hi,
I am sorry things are not working out as you had hoped, but, first I very much doubt you are doing anything wrong. I know it is so disappointing when your loss is slower than you expected and it is really hard to remain positive. Believe me, I know from experience how that feels, but it is just the way your body reacts to the trauma of the op and the weight you have already lost. It takes time for your body to catch up. Stick to what your team has told you to eat, get loads of fluids in if you can and please try to hang in there. HTH