I took a beginning machine quilting class and the instructor yelled at me for not going fast enough. She said I would break needles going so slow and my stitches would be messed up. I became afraid to machine quilt and was convinced i couldn't do it. Then, I met a quilter (not a teacher) who had won many awards at quilt shows because her machine quilting was so beautiful. I said, You must sew very fast.....She replied, Oh no, I sew very very slow. And, come to find out, she had the same machine as mine and she has never broken a needle. It took me a long time to convince myself that I could do it and to get the 'You must sew fast' idea out of my head, but I machine quilt much better now and without fear.