How Can English Help Me in My Future Occupation?

I have two reasons to want to learn English. The first reason is related to my experiences when I was a missionary. I really desired to learn English because of my improvement. By studying English, my understanding about the gospel is getting better. The second reason is related to my experiences when I was a nurse. I want to be a nurse such as professional of pediatrics. To be a professional, I want to learn nursing more at the graduate shool. In these reason, English will help me in my future.