I received my first sale 2 months after opening my shop! I have put a lot of time and effort into my shop and await more sales...
Here are 3 good tips for selling on Etsy:
1) Participate in the Etsy Community. It's great for promoting your shop and getting advice.
2) Focus on your target market.
3) SEO. (Search Engine Optimization) Tag your items accurately and include lots of adjectives and good info in your descriptions. It'll help you get found more easily in searches.