How to get photography clients?

[andy w]

You are no where near ready to start a business yet.

Before you even think about starting then you should have covered this very basic part of it i.e. where will I get customers.

There are a hundred and one ways to market yourself/your business depending on the type of work you will be doing, the sort of client you are aiming for etc etc. and TBH if you don't know where or how to do this then you should spend the next couple of years learning that and business in general before trying to set out on your own.