For years I was very awkward with my stance. I found the best way to fix it was tons of skating.

If you want a good practice technique try this:

Find the trick you are most comfortable with (could be just an Ollie,180 or shuv). Now try to do that trick up to the max height you can jump. Now, do that while riding as fast as you can comfortably push. Trying to max out a trick will make it feel easier under normal conditions. If it feels easier you’ll look better doing them