I’m going to guess that anything important enough to be the focus of your interviews and a big part of your essays is a major area of your life focus. (And BTW just to clarify — talking about a major thing in your life from multiple angles doesn’t necessarily mean you’ve repeated the exact same Info — as long as you are pulling different takeaways/stories, etc…) So I would guess that you would fall into the “oh hey this kiddos is really good” category and this a submission would be a good idea. In fact, if you are essentially presenting this as your major contribution, then I almost think you should be prepared to back that claim up with evidence. (Meaning yes I would probably submit if all of the above is the case.)
But of course, feel free to ignore my thoughts here and listen to your head and heart.