I'm currently in my junior year of college at the University of Alabama at Birmingham (yes, the one without the football program) majoring in marketing. I decided on marketing because it was easy, and I just wanted to get through school. Having been in business courses for around 3 years now, I have realized that business is not for me, I do not find the material interesting, stimulating, or, quite frankly, useful. I miss being challenged. Marketing is also a field notorious for leaving many with degrees in it unemployed or waiting tables. I have gained a new perspective on education and have realized that it's so much more than just a ticket to make a bunch of money. I was always good at math in school, and I always enjoyed doing the work. I had some bad science teachers growing up, so I was never too interested in science in school; however, since being out of high school, I have taken a huge interest in science, and I spend almost all my free time reading science books, listening to science podcasts, or watching science videos. The research I've done on physics has gotten me truly excited -- a feeling I haven't had regarding an academic subject since my first college math course. I have recently just made the decision to change my major to physics. While being excited about this switch, I am, as you can imagine, pretty nervous. This has set my schooling back 2 or 3 years. I have all of my core requirements done, so I will have to take electives to remain a full-time student. For example, this fall I will be taking Calculus I, General Chemistry I + Lab, and an elective (Astronomy?). Do you guys have any advice you can give me regarding anything from electives to study tips to telling me how dumb of a decision I made?