We simplified the way to create blogs compared to other themes. To create a blog page, just create a new Page and select the Blog Template from the Page Attributes. In the Page Settings (below the Text Editor) you can choose the Layout for your Blog and the Style of your Blog. You can also assign a sidebar if youdecide to choose the Medium or Full Width style.                                     

Under Settings > Reading make sure your “Posts page” is NOT set to a specific page!