Don't just swap words to meet a limit. Focus on revising entire ideas and sections to improve the flow.
Behind the finished piece lies a rigorous process of outline, drafting, and deep revision . Effective writing requires looking at one's life from an outside perspective to identify what is truly unique. It is about making the work so personal that no one else could have written it.
If this is for a specific application, identify a long-term goal first, then show how the specific resources of that institution help you reach it.