[Fruitbat]

Saya How much longer do you have in your degree? I'd register for it and another class, maybe go chat to the lecturer and see how many people drop out of the class in the first few weeks, maybe you can slip into a place.

If you have a few more bites at the Mandarin cherry, I'd hold off doing another languages course, until I had to absolutely choose a languages class. Hold out for Mandarin, then take another class if you absolutely have to.