Your stance doesn't matter. I would suggest you to do pop shoves. Pop them high and catch them. The feeling is very similar to the varial kickflip. Then try to jump a bit forward to catch the varial.

Just think of it like u do fakie varial flips. Just lean a bit back jump up and focus a little more on the flick than the shove then land bolts

Try to keep your shoulders straight

Try to lean forward a little. It'll keep the board under you and make it easier to land.