maybe practice on a test sandwich until you get it right before doing it on your quilt, that way you can work out all of the bugs. Also try rethreading the entire machine, maybe the machine was threaded incorrectly. Also did you make sure your presser foot was down when you started, sometimes its hard to tell on the darning feet. Also I can't remember if the foot has to be up or down when you thread the machine, but I think someone on the board with more experience can help you with that