1) Start a Journal
The hardest thing about a personal essay is finding your voice—most high schools focus on the academic essay, which is more stiff and formulaic than the admissions essay. An easy way to discover what you sound like when you're not citing academic sources or analyzing text is to start a journal. Every night before bed, take a few minutes to write about your day or what's worrying you or even try some of the prompts in the Common App. The relaxing background should let you tap into your personal voice without the pressure of sounding academic. At the very least, you'll have some snippets saved away for the draft writing stage.