I'm sorry you're having so much trouble, but the only advise I can give you, is practice, practice, practice. Took me forever to get the hang of it, and I still muck it up every now and then.And I've got a singer, not top of the lline, and not bottome of the line either. Have you tried Little Genie Magic Bobbin Washers. They really helped me at the start, now I don't need them, but maybe they would help you. Keep with it.