Before you can work as a nurse, you need to succeed in the application process first. Write correctly: You need to be meticulous all the time. I am currently working full time as a registered nurse, and feel that I would benefit from attending graduate school part time concurrently.
Why should they admit you? Make the story interesting and use it to illustrate and emphasize your key points. Also, it is better if you do not mention any controversial subjects, such as political or religious issues. Your reasons for wanting to become a doctor should be logical as well. At some point it became clear to me that I was interested in a medical profession based around teaching which involved the pediatric population.