<p>If you’re pretty good with math - NOT the school class kind but the AMC/AIME type math, then that’s a pretty good indicator for having the necessary critical thinking skills for manipulating your way around Physics. Electricity and Magnetism is more of the abstract stuff that the OP seems to enjoy. IMO, as long as you know the equations and what the variables mean, a solid math foundation like the one I described should turn Physics into a simple massive equation cramming session two days before the test. : )</p>