Tough situation. I'm the complete opposite in classes, I want as little help as possible. It sounds like this lady has always been like this -- kind of afraid to "just go for it" when doing something and if you make a mistake, you rip out and go at it again. I honestly think you and your friends just have to firmly, but politely, tell her that you're all there to learn and that you can't keep stopping on your project to help her with hers. You and the others should tell her that after you have had time to work on your project, you will, when you take a break, help her a little, but that her project is hers and maybe she should do less talking and observe others and what and how they are doing whatever they are doing. Good luck whatever you ladies decide to do.