What builds your intuition?
Some need a picture, to visualize.
Some need a mechanical model.
Some need good algebraic reasoning, symmetry, or logic as a focus.
You probably know that resistors add in series and capacitors add in parallel. Do you know why the components have opposite rules? Is that the kind of thing you want to grasp?
Can you think of 3 uses for a resistor, 3 uses for a capacitor, two examples of a transformer in everyday life?
Do you understand how the metric tensor is a generalization of the distance formula?
Do want to visualize differential equations with slope fields?
Do you just want to be better able to calculate, and want to study something new to do so? (If you haven't had complex calculus, I heartily recommend it.) If you want to improve your grasp of the logical structure of geometry, study non-Euclidean geometries.
One approach is to take a good textbook, and leave yourself detailed, organized notes in a binder, written with the aim of relearning it from scratch 5 years from now.
I'm throwing out options because I'm not sure what you want. Can you specify?