My wife and son both have celiac disease. Both were diagnosed as adults, a few years back (not at the same time).
They both seem to have adjusted quite well, considering.
I am not on a gluten-free diet myself, but almost everything I cook and many things I snack on are GF because that’s what makes sense for us. First, I’d assure you that you often will not be able to tell the difference between a gluten-filled boughten food and its GF counterpart. There are exceptions–we will all admit that GF pizza does not tend to be very good–and you may have to do some experimenting to find the best brands etc., but GF pasta, GF noodles, GF cookies, and many other GF foods really are very hard to distinguish, taste- and consistency-wise, from the “real thing.”
Second, you can learn to prepare plenty of foods that will be just as good as glutinous foods. Today my wife made GF Irish soda bread, which was quite good, and GF brownies, which were outstanding. It’s quite possible to make excellent stews and gravies, likewise, with bases that don’t contain gluten.
Third, while there are still a lot of restaurants that don’t do much to appeal to GF customers, it’s getting easier and easier (that’s in the US–from your spelling of celiac I’m guessing you’re not, but I’d imagine the trend is the same in most places) to find places that do serve GF bread (for burger buns, French toast, sandwiches), GF pasta dishes, etc. Last time we went out for dinner my wife had a reuben made with GF bread–said it was quite good. My son, who is a more adventurous eater in a larger urban area, says there are certain kinds of restaurant cuisines he avoids because their menu options for him are limited (I think he mentioned Ethiopian?)–that can be difficult when all his friends want to go to a certain place. But he says he usually can find something pretty good, even if it means leaving things off the dish (burger without bun…).
Which doesn;t mean it’s easy. GF food is more expensive, doesn;t always keep as well, is tougher to find. Traveling can be hard. My wife absolutely misses a few dishes that just aren;t workable in GF form, or that don’t turn out to be very tasty. My son, the same. Some people go out of their way to accommodate my family’s dietary restrictions (my son’s partner’s aunt, for example, always makes sure to cook something GF when they are hosting him, and one of my aunts does the same thing). Others, not so much. (Hi, mom…)
That being said, I would stress again that going GF may be easier than you think, and you may have to give up less than you think. True story from a couple of Christmases ago: the day’s dinner was to be held at my mom’s, and my son and my wife joined forces to create a gluten free gravy and gluten free stuffing. The GF gravy turned out to be more popular than the non-GF gravy Mom had made. (And it really was better too…)
Good luck.