lunaluuuna5
I have a similar problem. As a new author, my early chapters are much worse than my later chapters, turning away many readers from my story. I have plans to rewrite those chapters, but I'm limited by the existing frame and a lack of time.
I think you should ask yourself whether it's worth rewriting it. If you think it is, then decide how.
1. Rewrite within the existing frame. More challenging and will likely result in somewhat lower quality, but you don't have to stop the story and make readers reread portions of it.
2. Go back to that point and start over from there. Probably lose short-term popularity as a result and may upset fans. May also result in more long-term fans and popularity if you think the issue is that serious.
3. Reboot the book entirely. Plenty of authors have been known to restart a series entirely if they're unsatisfied with it.
Honestly, if you're a new writer still gaining a lot of new experiences as you go, then I wouldn't worry about it too much or just choose option one. Writers make mistakes and improve over time. It's normal to have some bad chapters/parts in early works.