The biggest worry while writing a long work

It's been 3 years since I switched from being a reader to a writer. This is the tweets of a creator who always writes serialized works on a whim, completely ignoring the plot. I just hit a difficult point in the story I'm currently writing, which is right at the beginning, so I wrote this as a change of pace. I'd be happy if you thought, "Ah, I kind of understand that feeling." On the other hand, I'm also hoping for feedback like "No, that doesn't make sense."