@Mocha:
As I said, in the German system, you have the possibility to avoid certain subjects. In the German version of Highschool (means 11th, 12th and 13th grade), you have a 15 point mark system, and you need to get at least 5 points to pass and at least 2 points in order to not have to repeat the whole year. I was good at almost everything, but I kept receiving Fs (means 1 point) at Math, so I came to an agreement with my Math teacher that she will give me 2 points and I'll just be present (meaning: attending the classes, but not doing anything) in order not to screw up my Highschool diploma, as it would be stupid not to pass just because of one subject. And, as I said, at university, any field of studies not involving Physics, Math, Biology, Chemistry or Economics has no need and no contact with Math whatsoever (which is the main reason why I am a straight A student).
This means that I lack the very basics of what would be required to pass the Math part of the GRE exam (I took a look at it, and you could as well give me the task to write a summary of Macbeth in Chinese). However, I will try, as you said, to get some good recommendations and do the writing parts as good as possible. I hope that'll do it.