Patience! You are barely out of surgery and probably not even on a regular diet yet. They pump you full of air in surgery and the anesthesia and trauma to your body can cause weight gain immediately post op. Give yourself time I promise it won't be a bust like the band was unless you don't follow your surgeon's diet plans. Revisions do tend to lose a little slower but they can get there, just hang in there and take it slow and steady. You'll still hit plateaus but these too will pass, you can do it just don't panic so early out.