Submitted thousands of pages, google sitemap recognized them but none have been indexed

Hi,

I have a website with couple thousands of pages.

I've tried to create a sitemap index and submit it trough google search console.

And I see that on sitemaps tab it recognize all pages, but when I go to coverage tab, none of them is indexed.

I thought it's a matter of time but it's been 4 days now and I see no advancement.

Part of them is shown in Coverage under Excluded (Although most of them are not even there)

On excluded most of them have:

Discovered - currently not indexed

and some:

Crawled - currently not indexed

Is there anything I can do?