Make sure your front foot is centered and pointing forward when pushing. Ensure that your center of balance is above the board and that you aren’t leaning too far to the right in order to get a good push. If all else falls, try another board and see if it is just your set up. Make sure everything looks normal and all the wheels spin well.

Try pushing of slower and try to keep your balance

Make sure your front foot is central and make sure you have your trucks evenly tight

It’s important to keep your front foot centered, otherwise you’ll lean to one side

when i was learning this trick my trucks were too lose and this made it harder to learn. See if this is the case for you.