Why the Beautition is not able to understand the modern haircut which I want?

I am really jealous from the haircuts of the actresses which I see on movies. I want to have cut like them and tried many times but that beautition is not able to give me the cut I want. Every time the cut is over I am left with something did not want. I want to know why she is not able to understand what I want. It’s a modern haircut and she should know about this. how else I can explain her what I actually want?