Whether you have chosen your major, or are still undeclared, passing every class you enroll in should be your top priority. Your cumulative G.P.A. will have a major impact on the next several years of your life, from applying for a degree program to landing an internship, and even your first job after graduation. Every course, as insignificant as you may think it is at the time, may be the deciding factor in an all too important decision later in your college career, so it is important to approach every class with the desire to get the best grade possible.