Stay in the same position on the seat. If you move forward, then the balance point will be higher. You should strive to use only throttle control to keep the bike balanced in the sweet spot. In the meantime, be as smooth as possible going from throttle to brake. Mostly, the back brake is your safety net. When you first bring the wheel up, make sure you are going perfectly straight, not favoring one peg, and not jerking hard on the bars. Steer from the pegs and seat by clamping the bike between your legs and moving your torso from side to side at your rib cage. Steering this way is most effective when you are at the balance point.