This is really all you need to get started. I was 14 when I first got my license - I used an earlier iteration of this book to self study. It’s really straightforward. Feel free to email with any questions! Always glad to help people get started in ham radio.
> I've been looking for a guide that can explain the math and physics behind it along with the electronics.
Interesting. I expect that if the physics in one of their books about, for example, antennas is not oriented towards math and physics enough for your liking, you’ll at least get some direction as to what part of a real physics textbook you need to study.