I think k the fun thing is you can write about anything. It is up to you to choose the content you want to share then evolve from there. When I first joined steemit, my intent was to write only poetry after all that was what I know. After some weeks, I began writing fiction and then nonfiction. I have done spoken word poetry for the Dsound as well and it has all been interesting and educating.

Just let yourself write as you feel is right. You will be better for it.