I can only comment on this from my own personal experience. I know that when I first was diagnosed it felt very lonely because when I would go to parties I was not able to eat all of the food that others were able to eat. I really wanted to eat the same food that they were eating, but I knew that this would only harm me. So I had to think of food in a different light. I started to tell myself that gluten containing products are like poison for my body. I started to realize that in-order for me to be healthy I needed to make sure that I only ate gluten-free foods. Therefore, I now knew that if I was going somewhere that I needed to make sure I ate before I went or I brought my own food. This was easy to think of for myself, but I also have a daughter who has Celiac who I have to be aware of. So I always made sure to bring a large purse so I can fit many different kinds of snacks. I still take tupperware containers of desert in my purse in case we are at a special occasion so we can feel like we can also par-take in the celebration with the same kind of food. It has become easier lately because my other daughter Cameron eats gluten-free for gluten sensitivities and many individuals in my family have to eat gluten-free because they either have celiac disease or a sensitivity to gluten.
Overall, I still have a hard time when I smell a particular food and I really want it. I just have to remind myself that I need to go back to the kitchen to create a recipe that will be as close as I can get it to the real thing. It may take awhile, but I know it will payoff in the end when I can sit down and enjoy it.