The best vocabulary word to describe what you need for marketing your self published book is perseverance. I'm not kidding, it's a lot of work, and quitting is not an option. Of course, there are a lot of other words and phrases that will fit, too, such as energy, willingness to put yourself out there, and time to learn and apply, etc.
Thankfully, along with all the hard work, you'll be rewarded with "pay-offs" like book sales and gaining fans of your work. So don't loose heart if (or when) you find yourself on the path of the proverbial two steps forward followed by one step back. As long as you stick to it, you will succeed; you will get those needed sales.
We all have to start somewhere, so weather you are a rising star of authors or a fledgling just entering the field, perseverance should be your best friend. And like with a bff, not everything is wonderful, but we stick around for the stuff that is wonderful.
Tip: Find as many bloggers as you can to review your completed book. There are hundreds (if not more) bloggers out there who review books (Free! Just provide a copy of your book to the reviewer). So find them, take in a deep breath and query for a review. I like Step-by-step-self-publishing (reviewer list). Reviewers are listed in alphabetical order with a list of genres they review to narrow the search for you.