DEAR HARRIETTE: I am entering my junior year in college and am having second thoughts of changing my major. I currently major in physical education to become a gym teacher, but I’ve become worried that it is too specific and maybe I should focus on children’s education in general and major in early childhood education. Switching majors means losing time and credits that I have already done, and I’ll need to spend more time and money to get caught up in the new major. I am worried about being set back in school and having to spend more money to make up the different classes I will need. Is it worth it to start over in my junior year, or should I keep working on the degree I am near done with?