dividing multiple posts for many pages ???

Use categories and the Category Widget.

Thanks MichaelH !
I know how to create categories and add a post to the catogory, however I don’t get how to link each category with each custom page. I mean that, in some cases each web page can have many categories but for my situation I want each page has only 1 category and when I create a new post, I can choose the webpage will show the post.

Hope to receive your reply !
Thank you !

This is how I have achieved what I think you are asking for.

You create a the category for example news, then you obviously put every news post in the news category. Then you can simply link to the news slug (https://yoursite.com/cateory/news) in your site navigation.

Or

You can create a page in WordPress called news then create a page template that queries the news category.

If it’s a matter of navigation look at
How to easily display links to both Pages and Categories in the blog navigation header?

or look at
https://www.ads-software.com/extend/plugins/list-category-posts/

or look at the Page of Posts example in the Pages article

Oh. I got it !
Thank you so much !