Why are you taking courses? Don't take courses if you don't need it.
Some psychologists match children development to human history. We have a period in which we play with dirt, a period of wars and fights, periods of obscurantism, renaissance,... You can let yourself be guided by history (math history) to study math. The most important to study first are those topics appearing first in history, the classics. Take this in a broad sense, after learning about the problem of squaring the circle you can read the proofs of the irrationality of Pi right away without waiting a proportional time to the one human kind waited to know them.
Don't be too eager about the "hard core" courses. Most of the time, what is hard core about them is an overwhelming number of definitions to learn. eg. Much more useful than an advanced algebra course, in which you learn the (should I least some) huuuge number of definitions that they will give you, is to solve the same number of high school problems in algebra. If you let the definitions come in some osmotic-historical-like way that will be enough and you get a better grasp of them than after a year of being drowned with a list of definitions and theorems that most of them are exercises (and most of them exercises simpler than the ones you would be solving if using the time in a different way). A key point is that what is important is not "what" but "how". It doesn't matter if you run of swim, what is important is to either run of swim a lot and with the finest technique, to keep the muscles trained. It is the same, with math.
Courses serve as orientation and motivation. They tell you what is important (if it is being taught in the course it should be important then) in the area and motivates you to solve problems (they give you homework) but, there are alternatives to courses to find orientation and motivation. Reading courses. Many of your professor would be willing to point to some sections in some books and tell you some names of theorems and concepts that are important and from that you got all the orientation that a course can give you. Join two more friends take a book recommended (maybe by some professor), a book with lots of problems and sit down with a fork and a knife and eat it like a gourmet pizza, solve each and every single problem.
