I wanted to add one more thing. You mentioned volts and amps. Try to think of them as units of measure. This helped me: 1 watt = 1 volt times 1 amp. So a w

I wanted to add one more thing. You mentioned volts and amps. Try to think of them as units of measure. This helped me: 1 watt = 1 volt times 1 amp. So a watt is a volt-amp. Similarly to how 1 joule is a newton-meter per second. When you work with units of measure symbolically in this way, you don't need to worry about not having an intuitive grasp of a joule or a newton.