I finished high school 2 years ago and now I'm stuck in a university in Turkey. I am interested in learning precalculus, discrete mathematics, physics and chemistry.
Question: I need to learn math and physics from the bottom, and I mean by from the bottom all the basic material, possibly starting in from precaluclus and up to calculus, etc. I would also like advice for anything related to buying books or searching online for material. Anything would really be appreciated.