My first book, "The Last Witness" was just published (second book in the series has been bought and will be released later this year).
www.thelastwitness.com
has a cool intro followed by a sample chapter.
Read it and let me know what you think! Here's the cover:
You "Destroyer" and "Lethal Weapon" fans, note who gave the book props! WARREN MURPHY!
Now, to answer your question, not only do you need to read, read, read, write, write, write, you need to develop an adamantium shell for the rejection letters you will at first receive. But its worth it the moment you hold your first book in your hands.
But do your readers a favor; get some honest criticism; praise is nice but if one person is confused about a particular scene, then ten more will also be confused. If one person feels something is missing then ten more will as well.
So while you will get an editor, after you learn to write, learn to edit.
Also, I have what I call a "piggybank", a text file where I keep ALL my notes, chapters that don't fit, thoughts, plot ideas, etc. Talk about a goldmine! After a few years, it's almost a novel unto itself!!!