Courtesy of /r/fantasywriters: I’m genuinely curious how you got started on Amazon?
When I started, I was clueless. I didn’t really start any significant groundwork until I had already published. It was slow going. Really slow. I told everyone I knew and badgered them to buy copies. This resulted in about 10 sales. I did a Goodreads giveaway (I have hard copies through Createspace), ran free days on KDP Select and used some cheap services to promote them ($5-$30 kind of stuff), and sent copies to small book bloggers (the sort who would deal with a nobody like me). Still didn’t get much of anywhere.