Its very frustrating isn't it! But you will get your first sale yet :) You need to make your items stand out a little more in the pictures tho. Your items are beautifully made and so colourful, but the background is also colourful and your not seeing the items properly.
I also noticed you've only been here since January, 4/5 months is not unusual to wait before your first sale. There are over 300,000 shops on Etsy so you need to work at letting people know your out there.
Don't wait for people to find you, help them. Go to other shops, explore, favorite items, favorite shops. When someone favorites my items I know I always go to see who it is, what they are selling etc. Make Treasury's. You need to be active and keep popping up in different places. make your own cirlce. All of these things help in getting known. And you'll have fun doing it :D