First, you solidify your skills. Your one-sentence question contains two mistakes. That's enough for rejection in anything you submit.
Second, you start the hard work, by which I mean you put in 10,000 hours or 1,000,000 original words toward honing your craft. During this period, you take classes on writing. You seek qualified critique. You rewrite--although those are not original words and don't count toward your total. Maybe you start learning about the business of writing in what spare time you have. All this while, you'll be working some other job to make a living, and writing when your friends or family are enjoying themselves, relaxing, and getting more sleep than you do. At the end of this part, you'll be about as good as you're going to get.
Third, you look at the market and your own interests. You decide on a genre in which you will write. You read the best of that genre currently in stores. You write a novel. You set it aside and start another. You return to the first one, which you now see is trash, and you rewrite it. Return to the second. When you have a novel you cannot improve, one as good as what's in stores, you seek beta readers, and they will tell you the many ways in which it still stinks. You rewrite it some more.
Fourth, you educate yourself about agents, commercial publishers, self-publishing, editors, cover artists, and whatever else you need to know to publish the way you want to. (For the record, people with agents and commercial publishers are the ones making the most money, so competition is fierce. While some self-published author support themselves, far more do not.) You submit your work, or self-publish--but don't quit your day job. You may need it.