I think I can handle Japanese and German, and in the following semester, J2 and G2... they're far too different to be a confusing combination to learn at the same time, I think. But anyway, my question is how hard would it be to throw in French? Eventually, I want to transfer over to University of Rochester as a language majour, and I'll be tempted by many more languages all at once.
So, is it extraordinarily difficult to learn more than one language at a time? Wait, I know it's all a matter of one's own brain, but I mean in general... what are the most basic difficulties I'll face by cramming?