I work 20-25 hours a week, am a physics major, and am currently signed up for Mechanics 1, Mathematical Physics, Intermediate Lab (An actual course - not like general physics labs), and Linear Algebra. I've taken Linear Algebra before and dropped it about halfway through the semester because I couldn't handle it along with Chinese, Modern Physics, another problem solving physics course, and work. I think if I stayed in Linear Algebra I would have done completely fine though, I just didn't want to chance it. Anyway now I am pretty sure I am at least acquainted with four out of five chapters of a linear algebra course. I also have the book for reference. I know that you learn Linear Algebra in Mathematical Physics. So should I actually take it, or should I drop it and focus on the three physics courses and work?