Advanced math?

Hi, I'm currently in EF(11) and have to choose LKs soon, but I'm still unsure whether I should do LK math.
In the 9th grade (still in the lower grades) I got everything (except Stochastic…) in the 2 range and my ZAP was also 2.
Now I got 14 points in the two exams we've had so far (but I think that also depends a bit on the teacher).

I'm not sure if advanced math is the right choice. There are two teachers we could get. I don't know one of them, and the other isn't very good at explaining things.
I just don't understand the topics in class (because I'm usually not listening), so I look at them at home about two days before the exam and actually understand them pretty quickly. It also depends on the topic, of course…