Hello!
Well, there is much you can do to improve the time that Google takes to index your URLs.
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You should, before anything else, upload the sitemap of your site in Google Search Console, it will help Google to crawl your site.
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You could use the option that Google Search Console offers you to inspect an URL you provide from your site and request its indexation.
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Last but not least, its important that you double check the internal linking of your page. When its done right it significantly improves the time that Google takes to index any new URLs from your site.
Tip: Try to link to this new URL from an existing a indexed URL that you have on your site, as long as it looks natural and not forced or anything.
