So I recently decided that I want to study cosmology, hopefully go to college for it but I'm just starting out. So I plan to study a lot over the next few months. I'm looking for textbooks like the ones in school, you read a chapter and at the end there are questions. I'm also trying to learn more about physics because I know the two relate.

If you could point out some good books I could use I would appreciate it
@eri Thank you! Also I'm not in school anymore and I'm not going into college yet, I just want to learn as much as I can on the subject before going into college for that. So should I start off the same way at home? Learning about calculus and then move up?
If so can you tell me a good intro book for Calculus?
@ Santa Math was never a strong point for me, but i'm willing to do as much studying as I can, would calculus be the only math related subject I should focus on?