With schools like that, after a certain point, there’s no way to stand out. It’s basically luck. You’re just another average applicant out of tens of thousands. And it’s very common to get rejected by all of them too. There’s one thing all of these schools have in common. They’re all overrated.
Here’s my advice. Spend some time soul searching, researching, and dreaming about what you want to do with your career. Dreams are things that can be converted into fruitful accomplishments later. A college is only a brand name tool used to achieve a dream. It’s no more a dream than owning a Chevy. Just because the school is selective, doesn’t make it any more a bachelors degree. 99.5% of the workforce run our massive economy without ever going to an ivy college. The other 0.5% still work in the same economy as everyone else making the same relative pay. Don’t go killing yourself for grades. You already have the grades to get a full ride scholarship just about anywhere.