However difficult the professor's classes are isn't something I'm too concerned with. [That is to say: hard or not, she's going to get through them. She has to.]

As for any other classes, I haven't given it as much thought as I probably should have. Apart from the lessons that I need, I suppose anything I can find the time for would be good. [She fiddles with the straw sticking out of her own drink for a moment.] Assuming that I will have any extra time, that is.

[She picks up her glass and, completely ignoring the straw, takes a large gulp.]