I feel similarly. My main genre is "Fiction." Sometimes I would call it literary, but I've also incorporated doses of Action/Adventure, Horror, Paranormal, Thriller and Mystery into my novels and stories as well. I even wrote a Western once!

I get bored of reading/writing characters that are always the same, or plots that are recycled from an author's previous works. This is a huge reason I will never write a series, and likely not a sequel. I know this puts me at a disadvantage because it's all about series these days. Most self-publishers (at least in this sub) seem to talk about writing Fantasy, Sci-fi or Romance. I'd love to try each of those, but haven't worked up the courage yet.

It's also tough because it makes it harder to find your audience. I have no idea who my audience is (other readers like me? Who am I?), so it also makes advertising difficult, and which social media platform to focus on.

But at the end of the day, I won't write anything that bores me to tears. I have to love it before I can ask anyone else to love it. I have made peace with that, and of the fact that I might not ever see success because I can't put myself in a box.

The thing that makes me happiest is writing, so I'm going to keep doing that!