No matter what sport you play or what type of intercollegiate athletic program you become a part of (NCAA Division I, II, or III or the NAIA, etc.), you need to know that the level of intensity and the level of commitment required increases significantly when you reach the college level. Whereas many students are able to be two and even three sport athletes in high school, college often requires you to commit to just one because that program (and that coach) will have certain requirements for your fitness, your training and focus, and also (very importantly!) on your academics as well. (Without scaring anyone away, the simplest terms I can put it into is to say that, as an intercollegiate athlete, your program owns you.)
For the majority of college athletes, however, this is exactly what you're hoping to find when you graduate to the collegiate level, so it's exciting to become a part of it. That's where the focus on your academics has to factor in as a major component, because you won't get to play if you're failing in the classroom. So remember that you are first a STUDENT, then an ATHLETE - and have fun out there!