prereqs for physics

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hello brothers, so my long term goal is to study physics, where I've always been an ignorant. stuff like relativity, cosmology, astrophysics, etc. is particularly interesting to me, but it seems you can't really attempt any of that without learning things like calculus.
so I've been doing that, almost done with MIT OCW 18.01 now. it's coming along nicely
so my question: does it pay to do 18.02, 18.03 right away too (multivariable calculus, differential equations), or can you jump straight into the physics stuff and be sort of fine?
and is linear algebra a hard prereq too?