For me it took lots of practice on 12" square sandwiches. I found I could just add fabric to top and bottom of the sandwich and quilt again without making a new sandwich and using up my batting. I quilted daily for weeks. I found it easiest to quilt my name or names of my family. I was already familiar with the motion so then the speed and moving came easier. I have a Janome 6600P. I have to turn the top tension dial almost as high as it will go then back off till the tension smooths out. The little dashes on the back went away with practice which has a lot to do with speed. Seems the machine goes fast and the hands move slower or something like that. After lots of practice on sandwiches I quilted charity quilts lap size and made baby quilts. The size of the quilt changes the feel so I slowly moved up to quilting queen size on my Janome. You can do it. Practice may sound boring, but it can be so fun to see the improvements. Turn on the music and relax. Try a variety of notions and tools till you find your groove. It is in you, just relax and it will be wonderful!!! Go, girl!