Need Help changing permalink structure

I am not sure what I am doing wrong. I have used ‘Dean’s Permalinks Migration’, ‘Jadedcoder Sticky Permalinks’ and ‘Permalinks Moved Permanently’ and none have worked, so I am clearly doing something wrong.

Separately, I have installed each of these 3 plugins. Then I go to settings and change the permalink structure. But then, when I try to click on a link, it goes to the 404 page..