quickest way to index website on google?

Two weeks of movement and then flat usually means google indexed what it found easily and has decided the rest isn't worth it yet. Check Pages in search console, the "crawled - currently not indexed" bucket is the one that tells you that. Submit the sitemap, use URL inspection > request indexing on the key pages, and link to the stuck pages from pages that already get traffic. Internal links did more for me than resubmitting ever did.