How to launch my own clothing store?

I want to know how I can launch my own clothing store. I have a great idea about it, and I just don't know where to get started. Any help??

even thoe imk just 14 I worked at my aunt store that she opend a year ago and it is still a hit first you have to got to the court house and a license to open a store then you can open a store but you have buy a building first