Welcome to the Quilting Board. It is the source of lots of information for almost anything. There have been lots of good advice already given but I would add one other idea. When making a sample sandwich to use to test before working on your quilt be sure to make it large enough to be sure it acts just like your quilt. I like to make mine out of good quality muslin on the front and back and the batting you plan to use in the quilt in the middle. Make it at least a foot square. Be sure you use the thread you plan to quilt with and be sure you have the proper size needle. When you try different settings be sure to use a sharpie pen and write on your test sample just what you have done. Keep these test samples for future use. When using a walking foot you should not have to 'help' it along. Doing so can damage the walking foot and your machine. I recommend a Craftsy class-several are offered that will be helpful. There are lots of YouTube demonstrations also.