Answer:
hey! im not very good with this type of stuff, but i'll try to help you! (also if im wrong, just tell me and i'll try to help you again!)
Step-by-step explanation:
similarities:
Poems and fiction books have your world in them. The kind of world you imagine and the kind of world you want to live in. Second similarity: they hide your feelings. If you feel depressed some day, and you write a piece of poetry or a piece of fiction, both of them would still reflect your feelings.
differences: Poetry could be a short story of mixed emotions. Fiction is a type of story that is always fake, imagined, or made-up while poetry could be realistic.
hope this helped a little bit! :)