Tips for starting an Etsy shop:
https://blog.etsy.com/en/2013/top-10-tips-for-starting-an-etsy-business/And you might want to try an online translator to improve your English, so you are able to handle business in English, understand your customers and have them understand you too.
Come to think of it.... online translators are that great either. Anyhow, you want to improve your English.
(I am a non-native English speaker too. I'm Dutch.)
Also, there is not much use in promoting your shop as long as there are only four items in it.
Wishing you many future sales!