Lay your hands, spread eagle, oon top of the fabric,, you will have enough grip to move the fabric, but not be able to grip it tightly. Use the weight of you hands to move the fabric
One hand left of needle 1 right,, allowing about a 6" spread between your. Hands, that' s enough space to control the motion.
Great job, keep practicing,, you' ll be a pro before you know it!