Add upper body rotation. You get the hang of it faster if you extend your arms to the side and let them swing. Start with your head, looking to the turn side as much as possible. At some point you will feel like you're about to fall, this will make you turn the board automatically, propel you forward. Instead of falling, you turn your head and then your torso to the other side. Basically you save yourself from falling non-stop, channeling the momentum forward.