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.
It is important to put yourself in the shoes of the Admissions Officer: why would your personal statement be unique, how are you different from the other candidates? Primarily you need to decide how you will divide your personal statement into digestible chucks. The most obvious way is to divide into paragraphs of 100 words. If you aim for between 500 and 600 words at most, it will help your admission officer when they have to read thousands of personal statements to find the perfect student.