There are two types of Personal Statement. General and comprehensive statement is often prepared for standard medical or law schools. It gives you liberty to write whatever could expose you the best. Example, tell us about yourself and your goals or why do you want to do this course? The second type asks for the response to either specific or multiple questions. These are mostly prepared by the applicant applying to business, teaching, graduate schools/ organizations/agencies. It gives you less freedom, but still important to be thoughtful and persuasive. Example, tell us about a personal quality, talent, accomplishment, contribution or experience that is important to you and how does it relate to the person you are? Remember, personal statement is not like an ordinary college essay. It is the most formal document to be written by self. If you're determined to write a personal statement, then you need to be skilful in good grammar, strong vocabulary, sentence formation, paragraph formation, editing and summarizing skills, to write an effective piece.
To help you begin the writing phase, it is advantageous to split the writing task into three parts: the body, the conclusion, and the introduction. You can do so chronologically or follow your own sequence depending on your personal preference and style.