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Despite what the science channel has lead you to believe physics and philosophy don't really have anything to do with each other. Most philosophers don't know anything about physics and vise versa.
If you want to know physics on a conceptual level, I'd recommend meme youtube channels like minute physics, veritasium, physics girl, etc. Hyperphysics is a good resource as well.
If you actually want to know physics, buckle in for a metric shitload of math. Algebra, geometry, trig, calculus (single variable, multivariable, vector, tensor if you think Einstein was cool), linear algebra, diff eq, comp sci related math, and a bunch of little bits from other maths. The physics itself is an application of the math plus some conceptual stuff. Reading textbooks and watching lectures might be able to teach you the field but your best bet is go to school. There's a big difference between reading a book and spending 60 hours a week working on homework and going to lecture (and reading books).
Can't really speak to philosophy though.