I would hope that your doctor told you that this surgery is not a cure, but a tool for you to use to help you with the weight loss. You have to learn to treat it as such. I'm 9 months out (03/03/10) and have lost 105 pounds altogether so far. I still have 20 pounds to my goal weight and it's coming off more slowly than it did at first, which makes the frustration even worse. It's not easy, no matter what. The loss of appetite is only for a short amount of time. About 6 months after the surgery you'll start feeling hunger pangs again. The key is to learn how to correctly interpret your body's signals for food without being able to over eat. You can still gain the weight back just as easily because nothing keeps you from sitting and eating a bag of M&M's except you. Exercise, eat right and take your Vitamins every day. I have a friend who's been "normal" sized her whole life, and her interpretation of some of my angst is that what I'm feeling now is considered the norm by the thinner populations standards.
Don't give up. Treat every day as a single day and if you goof up one day, the next one clears the slate. Make better choices by finding things that are healthy for you, but still satisfy's the cravings. I find that logging my daily intake is both liberating and confining. I use Livestrong's www.thedailyplate.com to keep myself in check. I haven't given up the things I love, but I've had to change my thinking a lot with this process. Nothing is bad as long as it's done in moderation. Training your mind to think that way is hard when you want to eat that whole box of Cereal instead of the allotted portion.
It's a tool. Use it to your benefit.