Talk to your high school counselor or your college adviser. They can give you some essay examples and you can have them proofread your essay once you are done writing it these professionals will have insight into what the admissions officers are looking for in an essay. And it is always a good idea to have one or two people read over your finished essay in order to make sure there are no grammatical errors.
Assistance with the essays format can be vital in ensuring consistency throughout. Therefore your assignment may be improved by managing your heading and text formatting correctly inserting page breaks in the correct places and perhaps adding headers and footers to your work. The end result should demonstrate your essay writing skills to the fullest extent.
I then visited over 50 New Zealand High Schools and spoke with over 8000 kiwi kids about essay writing. These students reported exactly the same challenges as I had previously encountered and more. The result has been two books and a DVD that have helped kids achieve some of the potential that sits inside all of us.