(October 7, 2022 at 11:45 am)polymath257 Wrote: If you want to learn physics, start with math. Go at least through differential equations and linear algebra.
Then get a good engineering physics textbook and read it. After that, you can start on quantum mechanics and special relativity. Don't expect to do general relativity until you have had more math (at least multivariate calculus and some more advanced linear algebra involving tensors).
I started failing college at the time that I was taking differential equations and abstract algebra. I rather liked differential equations even though I didn't get far. My main handicap is never having memorized the trigonometric identities. I'd have to restart at Calc I, but my progress would likely be swift. I always found the concepts easy to absorb. In two years I will qualify for basically free college classes. I'm sure that I could handle 15 credits a quarter without any real difficulty. I'm close to the U and so travel time is minimized.