Secondly, the choice of courses is equally important. PS writing is a huge project. You can't suddenly decide to take other courses at the end. You must determine a suitable major before further writing. Then explain why you want to sign up for this course, which is a very important course in PS. You can have amazing credits, great extracurricular activities and noble personality, but if the admissions teacher thinks you are not in conformity with the course, you will also be rejected.
Never choose a major for the sake of choosing a major. You need to have a certain interest and general understanding of the field where the course is located, know why you chose this course, and at the same time express what you know to convince the admissions office teacher.
Generally speaking, from the introduction, you need to use half of the space to tell what you know about the major and why you want to apply for this major. In the second half, talk about yourself and your own specialties. Another way is to divide your records into several categories, and then write a paragraph for each category, such as 1 paragraph to introduce your professional knowledge, what attracts you and why. The second paragraph describes your learning ability. The third paragraph introduces personal character, extracurricular activities, hobbies, etc. One more thing, spend more time writing your beginning and ending. A good beginning can make readers interested and read carefully, not just browse. A good ending can make readers remember you and recommend you if they are lucky. The best way is to start with your major and then end with what you want to study in this school and what you want to do after graduation.