Dude, you left the LLM comment in your chapter, that's the most egregious use of LLM writing I've seen - and I see at least three per week. Even if you hadn't left the comment in, it still would have been obvious LLM writing.
If - and I really doubt you did - IF you worked on it that long, then let this be a lesson to you on how shortcuts poison the rest of your work. It's the same as if a digital artist includes some generated images in their portfolio - now the whole portfolio is suspect, no matter how much work they did on those others people will assume they are faking their skills.
I worked on my comic for 5 years prior to release, 7 months is an early draft at best.
Nobody cares about an author's ideas, they care about how well the author executed their ideas. If you let the computer do the execution... well, I can get chatGPT to tell me a story anytime on any subject I care to name, for free. I don't need to come to you or anyone else for that particularly bland flavor of writing.
While you're mopping floors - we've all done our time at that kind of work - think about your story. Cast it into poetic verse, memorize it, connect every piece of it with meaningful moments, let every word ooze with a refined authorial voice that only you can create. Refine, revise, show it to an editor (a human one), rewrite it, deliver it as slam poetry to the empty buildings. Then you will be confident enough to speak in your own voice, rather than through the gibbering oscillations of ten thousand reddit comments and HR memos blended together like the Master from Fallout.