I'm having a lot of difficulty deciding between them. I would of course like to do Higher Physics, but I'm not sure how well I'll do. For the HSC I got 90 in Physics and 91 in 2U maths. However, I never did 3U maths, which is obviously a problem. I've borrowed a 3U maths textbook and have been learning some of the course (the bits that I think will be most important), but I'm not sure if it's enough.