Some people might disagree with me, but you should be more worried about having fun, learning new things about life and hopefully getting laid when possible. Of course study hard, but there is more to college than obsessing over a 3.4 GPA your first yr. There are plenty of 3.2 that had a great college experiences and get into dental school. Also, there are plenty of 3.7+ that didnt do anything in college but worry about class, and are not dentist because they are crappy people. Which life do you want? Ill take the one where my GPA was just OK, but damn I had fun.