So your saying that I should have parts?
Ok
Look, I stopped being an author, yet I faced the same problems when I was still writing, which were wrong grammar and punctuation.
If you want to stay in this hobby for a long time, try to learn more about these things. There are other rules, but grammar and punctuation are just basics, so focus on that.
Also, chop your chapter into several paragraphs. Don't copy and slap them without taking into account the layout of your chapter. Readers are often intimidated by walls of text, so you want to alleviate that with paragraphs. For you to know when to move to next paragraph, just cut it once you have written the entire idea on that part of the manuscript.
You may have thought of the best idea, but it will be useless if the readers won't read your work because they got turned off by grammar mistakes, and/or punctuation errors, as well as walls of text.
And big chapters (like 4k words and up) in this age of diminishing attention span isn't good. Take it from me; that's one of the problems of my works. A 2k-3k worded chapter is good even if you reached one hundred chapters (and that's actually good coz readers love binge-reading complete and lengthy novels).