I want to make my book and publish it ?

I want to know what to do :
How to make the book ?
How to publish it ?

Also I'm 14 so I actually don't want any money from the publisher just they sell it and they take the benifits I just want to be a good author so a lot of people will read and enjoy my books

So please tell me step by step how to make my own book from scratch till how to publish it ...

Thanks in Advance :D