Then look at some resources for writing personal statements and get some advice. There are lots of websites which will offer you advice for writing a personal statement but it is best to look at websites from reputable organisations such as UCAS or student advice websites which are well used such as The Student Room. Remember to ask your teachers, friends and family for advice. A good question to ask them is "what do you think makes me different from other people? or "how would you describe me?" because the answers often give you some interesting information that you hadn't thought about. The personal statement is not something you can write quickly so be prepared to think a lot about yourself, your qualities, skills, experience, likes and dislikes. You are unlikely to meet the people who read it so your personality needs to come though on paper; this is difficult.
Sell Yourself Your main goal is to sell yourself to the medical school, but do so in a way that is not arrogant. You must strike a balance between selling them on yourself as an applicant and not sounding cocky or pompous. The mistake people often make is that they think selling themselves involves listing grades and honors. It does not. Rather, it involves telling the reader about you as a person. Remember, the admissions committee already knows how you look on paper, they now want to know who you are. This is the place in your application where you have freedom. You can be humorous, you can be serious, or you can be philosophical. The key is to just be yourself. Let your personality shine through