Conducting a read_through _ A read_through is extremely important. It allows you to step back and examine the points you have made and their relation to the theme and the entire essay. For example, you might discover a certain section that did not help at all in supporting your main theme, or some details that could be better placed in the CV instead. Some even prefer to read their essay aloud or have it read to them so that they can spot lapses or gaps in coherence.
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.