^^^ Completely agree.
The other thing I would say is find the right curb to learn them on too. Sure you could just try on anything or your usual spot, but I found a lower curb was so much easier to get the feel for it, which then was a lot easier to take to a taller (normal) curb elsewhere.
I guess some people don't have the luxury of finding all sorts of curbs of different heights or angles, but keep an eye out and you might be surprised by what you find.