Oh, it was like a maze for me in the starting, and it still is. People are very good with stats analysis, an I can be just a basic reader of it.
You really can find some patterns there, like what niche works the most for you, whether long or whether short stories work more for you.
You can also see the interests of your readers in stats, and you can see your earnings, whether a story is boosted or not, etc.
I can give you some good stories that I have written to help you, they are very detailed.
Dropping them in another response.