I'm a big believer in writers knowing what they're doing. Early on, you really need to decide what you're writing. It's fine to "transcend" genres, break out of a genre, mash-up a couple of genres, or doing any number of things with a genre. But you need to know your genre in order to do any of those things.
Try to find what you're doing for work at Is It a Genre That Starts With F? Breaking Down Genres at Janice Hardy's Fiction University.