Everything we’re talking about here—writing, noticing mistakes, correcting them—will take you at least three and as many as five or six drafts to get right. So, Tip #6: Don’t treat your early drafts like anything close to final. That means you’re going to have to get comfortable with simply putting idea to paper, and with cutting entire paragraphs or “points” within the essay. You’ve probably never written anything like the personal statement before, and you have to promise yourself to be iterative—otherwise, you’ll lock yourself into a weaker version of the essay.
Just like Prompt #2, the accomplishment or event you write about can be anything from a major milestone to a smaller "aha" moment. Describe the event or ccomplishment that shaped you but take care to also show what you learned or how you changed. Colleges are looking for a sense of maturity and introspection—pinpoint the transformation and demonstrate your personal growth. 
While I know that your organization typically awards scholarships to students planning to major in disciplines directly related to conservation such as environmental studies or zoology, I feel that the public relations side of conservation is just as important as the actual work done on the ground. Whether it is reducing one’s carbon footprint, or saving the manatees, these are efforts that, in order to be successful, must involve the larger public. In fact, the relative success of the environmental movement today is largely due to a massive global public relations campaign that turned environmentalism from something scientific and obscure into something that is both fashionable and accessible to just about anyone. However, that success is being challenged more than ever before--especially here in the US, where an equally strong anti-environmental public relations campaign has taken hold. Therefore, conservationists need to start getting more creative.
Notice that I didn’t say, “write a rough draft, and submit it.” Why shouldn’t you let your essay fly? Because you need to take some time away from it to get some critical distance. For example, in the flurry of a rough draft, you might feel attached to a particular sentence or paragraph, but after stepping away—physically and mentally—from your first effort, you might come back to find that those wonderful turns of phrase don’t really fit the content or tone of the rest of the piece. You’ll be better able to catch those inconsistencies and revise them if you’ve given yourself distance from the essay. You want to make sure that your application is polished and tells a clear, convincing, coherent story about why you belong at XYZ University, so instead of dashing it off and being done with it, give yourself at least a day or two away from it so that you can come back to revise with an alert mind and fresh eyes. Only after you’ve had a chance to review your essay carefully and put the finishing touches on it should you click the submit button.
“I had anticipated a vacation in Washington, D.C., but unexpectedly, I was rushing to the hospital behind an ambulance carrying my mother. As a fourteen-year-old from a single mother household, without a driver’s license, and seven hours from home, I was distraught over the prospect of losing the only parent I had. Three blood transfusions later, my mother’s condition was stable, but we were still states away from home, so I coordinated with my mother’s doctors in North Carolina to schedule the emergency operation that would save her life. My mother had been a source of strength for me, and now I would be strong for her through her long recovery ahead. As I started high school, everyone thought the crisis was over, but it had really just started to impact my life. My mother was often fatigued, so I assumed more responsibility, juggling family duties, school, athletics, and work. I made countless trips to the neighborhood pharmacy, cooked dinner, biked to the grocery store, supported my concerned sister, and provided the loving care my mother needed to recover. I now take ownership over small decisions such as scheduling daily appointments and managing my time but also over major decisions involving my future, including the college admissions process. My mother remains a guiding force in my life, but the feeling of empowerment I discovered within myself is the ultimate form of my independence.”
There’s no reason to rush your essay. You won’t score extra point with the admissions department for finishing your essay in an hour. Unless you’ve helped write the State of the Union, your admissions essay will likely be the most influential essay you’ve written so far, at least as it relates to your own life. Give yourself at least a week to compose your essay.