On your edit tor area, there are 2 ways to create a blog
1. Select "New Post"
2. On Blog Management, select "Add Post"
Fill your Post Name and select Categories
You can click Add Category to create your own category. Also, you can select the parent category with the 3 maximum levels. For example: If we add "Cats" category and select parent category to "Animals", a "Cats" category will be under the "Animals" folder.
On the Post page, there will be a blog widget which contains Category list and Recent Post as a default.
You can add more widget by clicking the "Section" icon then selecting "Blog"
Category list: This widget shows all your categories
Recent Post: Shows your latest post also you can adjust the number of posts, set date & time, author name and categories.