Developing a thesis is your first priority. In this case, it would be why you believe you are deserving of admission. Then start writing your introductory paragraph, using an opening rhetorical strategy (rhetorical question, declarative statement, anecdote, definition, etc.) using a combination of 2 is desirable. Then introduce the points you will later expand on in the body paragraphs that will help support your thesis, and finally close with your thesis.
Good luck and I hope you gain admission.