Distractions are a big thing. I'm almost certain if I cut back on the amount of 'fun' I had, my GPA could have bumped + .1-.2. Smartly choose your classes as well - make sure you have reasonable classes/schedules where you'll do well. A couple of bad grades can sink your GPA quickly. Try to find out the right way to study; for example, at my school, reading from the Orgo textbook was useless, and doing the problem sets were all you needed.
College is a time of great personal growth for a lot of people (I changed a lot, as did many of my friends), and one of the most unique experiences you'll have in your life. Prioritize your academics foremost, but also take advantage of the opportunities (clubs, research, study abroad, etc) and potential lifelong bonds you can make during this time. I ended up in the 3.6s, but you can most definitely achieve a 3.7+ and all of that with proper time management and smart focus.