Reading poetry and prose can cultivate sentiment and enhance personal taste. Poetry and prose are short and pithy, and readers need to read slowly to get deep into them. What they learn is a kind of accomplishment.
On the contrary, the advantage of a novel is that it has a story and is fascinating. A good novel can naturally improve your literary accomplishment, but it is more fascinating and makes you eager to know the ending of the story and then move on to the next one.
I don't know how much you like reading novels at present, but I suggest that you focus on poetry and prose first. When your literary accomplishment reaches a certain level (if you think reading novels is a kind of enjoyment, take your time), you will have your own opinions without me.