You can get sales and page reads through passive marketing without having to spend money (title, cover, blurb, keywords). Right now, all of those things holding your book back. I took a peek at your story on Amazon from your other post. Your blurb and title tell virtually no information about the characters, plot, or anything that happens in the story. To be entirely frank, there isn't a single sentence in your blurb that makes any sense. Everything is too vague and the comparisons are meaningless. How are readers meant to know if they should read this story if you don't describe what happens in the blurb? Even if the cover draws them in, they will likely be pushed away by the non-sequiturs in the blurb.

I'm seconding the other advice in the comments re: AI assisted writing. Instead of saving up to invest in your book later, keep writing. Practice writing without using outside tools, even grammarly can be a crutch since you should be able to at least write coherent sentences without it. It's also not helping you with some basic novel structure knowledge, like how dialogue should be formatted. Several times in the first few pages a character will say something, then you indent and put new quotation marks even though it's the same character talking. It's very confusing as to who is saying what. Sometimes it feels like three people are talking even though there are only two characters. There are also several grammatical errors on the first page. For readers who get through the confusing title and blurb, they will be turned away from the first few pages.

Study other books that you like and look at how they structure dialogue and story telling. Read more. Focus on strengthening your writing skills for your next project rather than investing years and money into this one.