* Learn to grok math. No, really. Learn to understand the physical meaning behind what you write. Time integral of some signal? Oh, yes! It's energy = ability of that thing to do work. Fourier series => this signal written as a sum of sine signals which you can analyze separately (with all the implications that has for linear systems). That kind of stuff.
* Learn to look at circuits in terms of transformation of magnitude, phase, frequency, shape and nature of signals, not in terms of connections, adapting this to various use cases in circuits. There's no general answer for this; an inductor is sometimes there to "insist on keeping the current to a constant value", sometimes it's there to exhibit a greater impedance to high-frequency signals, therefore allowing -- along with the capacitor over there -- only signals of a certain narrow frequency band to pass.
* Learn circuits in terms of idioms. Try to look at schematics and understand that "this part" is a filter, "that part" is a preamplifier, "that part" is a current mirror used for biasing and so on.
* Play with circuits all day
* Learn to grok math. No, really. Learn to understand the physical meaning behind what you write. Time integral of some signal? Oh, yes! It's energy = ability of that thing to do work. Fourier series => this signal written as a sum of sine signals which you can analyze separately (with all the implications that has for linear systems). That kind of stuff.
* Learn to look at circuits in terms of transformation of magnitude, phase, frequency, shape and nature of signals, not in terms of connections, adapting this to various use cases in circuits. There's no general answer for this; an inductor is sometimes there to "insist on keeping the current to a constant value", sometimes it's there to exhibit a greater impedance to high-frequency signals, therefore allowing -- along with the capacitor over there -- only signals of a certain narrow frequency band to pass.
* Learn circuits in terms of idioms. Try to look at schematics and understand that "this part" is a filter, "that part" is a preamplifier, "that part" is a current mirror used for biasing and so on.