Career

So, I've really been questioning my career choice lately. I really want to be a teacher and be able to go to work everyday knowing that I get to do something that I love. However, lately I've really wanted to make a difference in someones life, a child's life. I'm wondering if I should change my career goal into doing something that will allow me to do that more. I want to be the change in someones life that I needed in my own. I want to be that person that a child looks forward to seeing everyday. I want to make a difference, an impact. But how?