I’ve self published my first work via Amazon and while I could choose 2 categories, I wasn’t given an option to choose sub categories. I did research on key words and included the ones that identify the categories I wanted, but I’m still in the very broad categories - and therefore sitting higher in the category ranking. Annoyingly, if I was in the sub cat I want to be in, I’d be in top 50. Can anyone help advise me what I’m doing wrong? Thanks 