Be sure tension is off the presser foot, wear gloves, the ones with rubber nubs works for me, lower the feed dogs. Practice, breathe and relax, if you are tense it will show. Before I start on a quilt, I get out my quilt sandwich and make sure the stitches are to my liking. Try to move your hands and sewing speed together. I have FMQd over 80 quilts, mostly double to queen or a bit bigger on my regular machine W/9" throat . You will get the hang of it with practice.