Judy, your items are gorgeous! Don't quit!
I didn't get "regular" sales until I had well over 100 items in my shop. Now I have 300ish listings and see a sale every other day or so, even if it's small. Since April 2011 - 746 sales. I am a mom, wife, full time college student, and a homeowner. So I don't have the most time in the world to work on this, so I guess you really don't need it if you make it easy on yourself.
I use Twitter, Facebook, Stumbleupon, and Pinterest. But not everything all the time - that gets overwhelming.
I expanded my titles - my titles are long. Sometimes I run out of room! I've seen people say keep your titles short, but that just doesn't work for me. You never know what people are using as a search term, so I try to include as much as I can.
I use different words for the same color - blue isn't just blue, it's indigo, sky, powder, cobalt, sapphire. red is maroon, burgundy, fire engine, lipstick. white is ivory, off-white, cream. Think like a Crayon box. When I need help thinking of different names for colors, I actually start pulling out crayons, checking out my old Alfred Angelo color swatch book, or searching for Pantone's current or just past "it" colors.
I have several search phrases that people keep using over and over again to get to my items - these phrases are in each title that it's relevant to put it in. It was easy to figure out - look at your all time shop stats and you'll see phrases pop out at the top.
I also lowered my prices. Sure, I probably put more work into some of my items than I'm charging, but I have a "Rust Belt" mentality. The economy really sucks where I live, I know how much my supplies cost, and how much it makes someone smile at a craft show when they find something they really like and see that the price is right! So I brought that mind set over to my Etsy shop. I think that helped, too.
Also, don't repeat the same word in your title. I see a couple of your titles say the same word at least twice - that's a SEO no-no.
Your photos are great, but some of them are "far off". Learn to love your zoom and macro settings on your camera. I like to have my first photo be an image of an upclose focal part of my jewelry (if it has one). I also edit my photos to make them pop - brightening the background to a brighter white, cropping out dead space, etc. Some of your photos, you can't even tell exactly what the item is because it's taken so far away!
When my shop didn't take off immediately, I didn't quit. I got really quite mad and started working my rear end off to make it work. I had to use eBay sales to pay my Etsy fees for a few months, then it started to go the other way!
Hope this helps!