How to get rid of bad habit of shuffling and go into walking

Every time and take off on a wave I remind myself to do a proper cross-step technique but when time comes to trim the board I always shuffle. It looks like I've got a bad reflex which now I need to get rid off.
What exercises do you recommend on land to get proper technique in your blood? I know what I need to do, the problem is to actually do it on a wave especially on a critical part of the wave when it's time to start walking.
Same problem with going backwards as well.
What exercises do you recommend on land to get proper technique in your blood? I know what I need to do, the problem is to actually do it on a wave especially on a critical part of the wave when it's time to start walking.
Same problem with going backwards as well.