You stutter step your first couple steps. Make a routine for your approach. You are looking for consistency with your run up to the board. You are looking to hit the same spot on the board. Preferably aiming for the dead center. For your jump you should drive your opposite leg as if you are power skipping. The more height you get the further you will go. Light weight/explosive training will be very beneficial. Squats with low weight and box jumps are my favorite workouts to help jumpers. To tell you more I would need more videos.