Almost half of U.S. adults have a university education, making America one of the most educated countries in the world. At the same time, 51 percent this educated population say they would change at least one aspect of their education experience if given the opportunity to do it all over again, according to a recent Gallup poll. Their biggest regret? The major they chose to study.

Myers-Briggs expert and author of "Live Your Life from the Front Seat" Jessica Butts tells CNBC there is a very simple step teenagers and young adults can take to help avoid this problem for their own future: figure out their personality type.