In some ways you are very lucky because your experience of high school, hobbies and life experience will already be different from many UK/ home students so you should take advantage of this in your personal statement. But you also need to make 2 things very clear. Firstly, why do you want to study in the UK and secondly, you need to show that your English is of a good standard (usually IELTS 6ǌ or above). It is no good having IELTS 6Ǒ if you personal statement is full of grammar and spelling mistakes. But DO NOT pay for someone to write your personal statement for you on one of the many websites offering this service. If you have IELTS 6Ǒ, you do not have perfect native speaker style English and universities may reject your application if they suspect it is not your writing.
4. Be cute or funny _ Maturity is one of the most common adjectives admissions committees use to describe the ideal graduate or professional school student. You are applying to eventually become their colleague, a fellow professional. Show them you take their time, their program, your future, and yourself seriously by maintaining a positive and professional tone. Unless the application directs you to submit a creative writing sample, leave the stand_up routine for the comedy club.