The body of your personal statement is going to be hard work _ you need to use around 50% of your word limit to give the admission representatives concrete evidence of why you stand out from the crowd in this application process. The body is also where you will be answering questions and giving examples of experience and affects of experience. Answers and evidence need to keep reflecting who YOU really are. If you're struggling to keep under the word limit, allocate each question a word limit as well.
Check for logical flow and paragraph transition which make the statement strong and easily read. _ Read the personal statement over _ if you need to read any of the sentences twice, and then re_structure them. Have I left myself too short on an important area and too long in another? Cut and chop away until you know that this statement is strong, logical and captures the attention of the reader. If you step over a platitude or cliché _ remove and find another way. At the same time _ give yourself a limit of how many reviews you will do, otherwise you will keep chopping and changing losing the essence of what you are writing. _ Lastly, peer review _ a person or people you can trust to be brutally honest and who knows you well. Preferably someone who also understands that this personal statement is for admission to graduate school. Get several people to give you a boredom rating along with a rating of whether or not you have truly reflected who you are.