Contributing Writer at Vape Magazine
It's good that you want to write something, but you also have to have a goal in mind. You also need to ask the following questions and write them down in a journal: what kind of book do you want to write? What is your favorite genre you'd like to see a story in? What kind of story do you want to tell people? What is your message?
Once you do that, then you can go onto the next step which is research and reading up on the styles of your favorite authors to see how they use scenes, language, etc.
This is no fast process by any means, so don't expect quick results overnight unless you start writing and keep writing until you are done with a draft.