I think a big reason for this newfound excitement is the relevance of my current studies. For 15 years of my life I've been taking classes that teach important things such as math and english, but for the first time, I have classes that are teaching me things I will be using in my career! It makes it so much more meaningful when you know the classes you're taking will be helping you for the rest of your life. THAT will help you be excited about that.
However, even if my classes weren't so pertinent to my professional interests, the excitement would still remain. Learning is probably the most fun thing I've been involved with my whole life. If I could be a student at a university for the rest of my life, life would be grand. I love to sit and listen as others who have aquired much greater knowledge than I, teach and tutor and help me understand their learning. It's truly a unique experience. I hope that all of us will have the chance to teach others what we are learning now. I guess that is part of the point of this whole experience. As BYU's motto states, "enter to learn, go forth to serve".