I'm currently a freshman wrapping up his first year, unsure whether to go toward math or physics. I'm currently leaning toward math, but I want to give both subjects a fair shake.

I have a couple math textbooks I've been going through that are decent, but I am currently only reading 'Fundamentals of Physics' by Halliday. I know it's a standard textbook, but it is not comprehensive enough for my liking. It glosses over too much. Any other equivalent, rigorous and proof-based texts?