The first thing you must do is quit thinking like a writer and start thinking like a reader. That shouldn't be a problem, because you are one. If you don't enjoy reading, you can't write something that someone else enjoys reading. So, when you read, how do you choose what to read?
My wife can walk into a bookstore, look at the cover blurb of a book, conclude "I'll like this," and buy it. Then she'll read it and be correct. Every time.
I almost never do this. For me, it's word of mouth. It's book reviews. A good reviewer tells me enough to decide if I want to buy the book. I've rarely been led astray by a reviewer.
I suspect that, if you look at your own reading habits, you're like me. You find new authors to read through word of mouth. Once you find one you really like, you buy everything else he/she has written and snatch up every new one as it comes out.
So there are your goals. Number one, write well enough to keep those readers coming back. Number two, get those reviewers to say "Hey, this author writes very well." Meaning, contact those reviewers.
You want to be reviewed as much as possible. Walk into any bookstore, log onto any e-publisher site, or visit Amazon or Barnes & Noble. Guess what you'll see? A whole lot of books. If one of them happens to be yours, how will people notice it?
Your publisher will market your book, of course, but they market all their titles equally. What you want is for a potential reader to walk into that shop or log onto that site with your name and title already in his or her head.
Your publisher will submit your book to reviewers. Reviews (even negative ones) will generate sales. Work with your publisher to ensure everyone is covered. Also make sure you don't both send the same book to the same place because that's just plain embarrassing.