Diane, if you were selling tons of stuff here on Etsy, you might have a reason to be worried, but it looks like you've sold 9 items in as many months. At this point, I'd suggest listing more on Etsy, that is if you're serious about trying to make your Etsy shop successful. When you get to 50 listings or so, then consider listing half of what you make, and when you get to 100 listings, perhaps just 1/3 of what you make. This is, of course, when you're trying to build up inventory for a show. At other times of the year, list everything you make!
When you do the show, my recommendation would be to deactivate your listed items, rather than put your shop on vacation. Vacation mode tends to take you out of the search engines, and that is usually not a very good idea.