Nobody bought or read it. Begin by considering: What genre or category is your book? Having landed an agent is a credit in itself.
Send it to the publisher, release it on Amazon, do whatever you need to do to get it in front of people. If so, this article is just for you. Feel free to take a day off, if you want, but schedule that ahead of time.
The truth is: inspiration is merely a byproduct of your hard work. Acquisition editors first readers at publishing houses who decide whether your manuscript is worth showing to their bosses and literary agents tell me they know within two minutes or as few as two pages whether your manuscript is worth pursuing.
People will judge your book by its cover. Make it short and to the point, preferably one page, and send electronically. If you wished they would have stuck with it till you got to the good part, next time start with the good part.
How do you decide your next step? You have to practice, which means you have to keep writing.
Amazon also allows you to select 7 keywords or keyword phrases to make sure your intended audience can find your book when searching on Amazon. Your synopsis: a one-paragraph summary that goes beyond the elevator pitch and tells what happens and how things turn out.