Any Advice on taking University Classes?

<p>I'm gonna be taking two classes at Rutgers university this summer, and was wondering if I could get some advice from people who took university classes in high school. </p>

<p>First off, how do you know what classes to take if you want them to go towards your major in college? What kind of classes might a future economics major be advised to take? Would a class on employment/labor relations be a good idea?</p>

<p>Also, how did you have to adjust your studying habits. Were the courses harder or easier than AP classes?</p>

<p>Any other pertinent advice is greatly appreciated, thanks!</p>