First of all, you should make a statement with your tutor, expressing that you are interested in studying the direction of the subject with your teacher and are willing to do it. It is very important to express your attitude, what you are going to do, what experience you have had before and what preparations you have made. What courses have you studied in your previous major, what related topics are there, and so on. You can learn from the resume magic board. I hope it helps you.