These are the sections you can customize on the blog page: Breadcrumb, main blog, categories, recent posts, and tags.
Follow the instructions here.
Layout: There are 3 layout types you can choose from: default, built container, and full width.
Position sidebar: You have the choice to type none, left, or right.
Maximum articles to show: You can choose the number of blogs displayed.
Display column: The blog list can be shown in three ways: list, 2 columns, or 3 columns. You can choose the one you like.
Type paginate: Paginate and show load more are the two types of pagination you can use.
Title: The title category is customizable by you.
Select categories menu: The category you selected above has a related menu. Select that menu.
Title: The title recent post is customizable by you.
Blog name: Select the blog list shown here.
Title: You can edit the title tag.