Changing exerpt to full text the7 theme

Hi, I’ve tried everything, but I just cannot get the posts to display in full text rather than exerpt. I created a page called blog, and changed the posts page to point to that blog page. Then I went to setting / reading, and changed it to display full text rather than summary and saved it. Yet, when I go to the page it still displays, and exerpt summary. How can I get the full blog just to display on that page without having to navigate to any other pages? Any help would be appreciated.