You should make your essay about a really personal time in your life. And don’t be afraid to go into detail, don’t hold yourself back. Make sure you use proper vocabulary, but don’t make it super wordy. From what I’ve heard, it should read like a story, like a nice flowing river.
Make sure the essays really capture the best parts of your personality, and, if you can, tie in some of your research, extracurriculars, or community service. If your family needs a lot of financial aid, you might want to tie in some kind of language that suggests your need.
So just don’t be afraid to show your true self, what you really enjoy, or times where you’ve felt done. Don’t hold yourself back and make sure to make it AMAZING. And just remember, I’m in your same boat; I’m a student applying too, so take my advice with a grain of pepper.