Problem with GSC indexing

There is a website, which is recently created. I have added the property in GSC and submitted the sitemap. Problem was sitemap had sitemap for tags also.. now all the tags are indexed because of that posts are not indexed.. all posts are in crawled but not indexed state.

How can i resolve this

Any suggestions?

First of all if you are using a plugin like All in one SEO or yoast tell the plugin to not include tags and categories n the sitemap. Also use noindex meta tag on those pages. After that search google for http://yourposturl.com directly. Not like site:domain.com. It may already be indexed.