If you've been invited for an admissions interview, you should celebrate! It's a good sign that the program is particularly interested in you above other candidates, and they want to learn more about you and your academic interests.
What makes a good candidate stand out from a great one? Sometimes it can come down to a well-crafted letter of recommendation.
Who has the time to think about graduate school when they are still working on their bachelor’s degree? The truth is most start the process in their junior or senior year of college or after they graduate. Honestly, though, it is never too early to explore the option.