The following videos will help you gain a better understanding of working with Pages and Posts

Pages vs Posts

Add a New Page

Restore a Page

Revisions

Add a New Post

Trash a Post

Restore a Post

Post Categories

Post Tags

Uploading Images

Editing Images

Replace an Image

Deleting Images

Set Featured Image

Image Galleries

The Image Editor

Adding Media

Add Image From URL

Editing Text

Hyperlinks

Lists

Using Paragraphs

Embed Videos

Post Excerpts

Creating Playlists

Editor Overview

Reusable Blocks

Adding New Pages (Gutenberg)

Adding New Posts (Gutenberg)