If you have blog posts from last year or even a few years ago that you want to import into your WordPress blog, there are a few different ways to go about it.
The easiest way is to use a plugin like WPBakery Page Builder Ultimate or Jetpack Import/Export. These plugins will allow you to easily import your posts into WordPress, and they will also export your posts as a JSON file so that you can easily import them into another blog or website.
Another option is to use a third-party tool like Export My Posts. This tool will allow you to export your posts as individual HTML files, which you can then import into WordPress using a plugin like Import My Posts.
Finally, if you just want to grab the titles and headings of your old posts and import them into WordPress without importing the actual post content, you can use a plugin like Headlines Plus for WordPress. This plugin will grab the titles and headings of your old posts, and it will also add some basic formatting like bold and italics to the titles and headings.