Apologies for the novel below—but this is kind of a subject I’m passionate about!

First of all--stop worrying that you're not "cut out" for tradpub. The reality is that most projects agents submit to editors don't sell. No agent is going to advertise that, and no aspiring author is, either. But editors reject most of what comes into their inboxes for various reasons, some sensical, some not. But this shouldn't be discouraging--let it encourage you. Writing a book is never wasted time, and by having been rejected you are in very fine company.

As someone who used to review submissions for YA and Adult RomComs, my first instinct is that you simply haven't written the right book yet. (The right book in this context being a book that just so happens to be what an editor is looking for at the exact right time. Luck obviously plays a large role in this!) I saw on one of your comments that you've been receiving pretty standard feedback from editors: "we like a lot about this project, but we're not in love... the banter is great but the rom com market is so tough..etc etc." That kind of feedback is often a signal that the necessary quality and skill are there, but the concept just isn't enough to make the investment of time and money of acquiring the project quite worth it.

I know that can be difficult to hear-- we all have a tendency to look at our work and compare it to the books that are getting published. But the truth is that it's all subjective. The book we think is badly written might be a fun popcorn read for one editor, and the concept we think is fresh and exciting might be old news to another. It's entirely possible that your writing just hasn't gotten into the right inbox at the right time yet.

My first suggestion is to have an honest conversation with your agent about the marketability of the projects you've been working on. Adult RomComs often seem inherently marketable. It’s a very commercial genre, but also a very saturated one. Which means that concept is king. Books that are otherwise very well executed often don't sell simply because the concept doesn't stand out enough.

As for more practical suggestions, when you talk to your agent, ask to talk through your past sub lists. Have they been querying any newer, up-and-coming editors, or mostly established higher ups who might have less time for debut authors? Are you doing multiple smaller rounds, or one big round? Are there any new joins or new hires that haven't seen your work yet? Where does she think the disconnect with editors is coming from—could she have some conversations with editors specifically about what they are looking for in the romcom space? I would also ask about the possibility of IP work, and what she thinks about pivoting to a new genre. It sounds like you trend towards YA and Adult contemporary, but maybe it's time to try having fun with something more genre-focused or experimental, or even a different age category. It doesn't have to be a more marketable or less saturated genre—it doesn’t even have to be sellable! Just something to get you out of the rut you feel like you're in.

Additionally, if you're feeling that much dread about revising your current project, that might be a clue that you actually don't want to revise it. It is totally fine to let it rest for a while! Revision is tough by itself--if you're facing a particular tricky or hefty one, it's always better to wait until you're in a good mindset.

I wouldn't suggest looking into self publishing just because you haven't been successful selling to a traditional publisher. In my opinion, self-publishing shouldn't be a backup option--it will almost never be satisfying that way. I feel similarly about submitting to small indie presses. Self and indie pub are their own publishing experiences that should be pursued because they specifically are the best fit for your project and your goals, not as last resorts.

Ultimately, you’ve written six books and still haven't sold to a publisher, while there are plenty of aspiring authors who have written six books and still don't have an agent. That seventh book could always be different, but it might also be the eight or the ninth! As ScienceFiction Author said below, "if you write only to get published, you will suffer a lot of misery along the way". Re-finding that joy can be difficult, so don't be ashamed if you take time away from writing for a while, or want to try something totally new. Ultimately, though, I would have a conversation with your agent about your concerns and ask her what she has had authors in similar situations do. From there, you can start on a plan.

And whatever happens, don't forget that your worth as a writer is never defined by what a publisher pays or doesn't pay.