Don't make the mistake of creating content you think others might like. I have fallen for that when I just started and it's horrible when you are forcing yourself to write about things you don't enjoy. I now mainly write about life and I enjoy it very much. And that's what Steemit should be enjoyment and not work.
Write about things you enjoy and you will do fine here. Good luck!
I have just posted this what do u think? https://steemit.com/story/@estibuil/tara-my-best-friend-and-a-sad-happy-story