The spark of creativity is different from person to person. Some sew, others make pottery, some garden, some have children, with a lot of in between crafts and interests. Explore her strong points, be it cooking or computers. Encourage what she can do and enjoys. When she plants a "seed" in her home, watch her tend it, and praise her efforts.
From time to time, ask her opinion of color selection or patterns for your projects. Show her that you value her opinion, rather than try to change her. She is trying to be her own person. Let her grow at her own speed.
Perhaps I might admit to her, were she my DIL, that I was lonely, and wanted a sewing buddy, then ask if she had any friends who wanted to learn sewing, or their mothers. Offer to teach them. Someone just might take you up on it. When she hears back through the grape vine how cool you are, and how much fun they are having with their new hobby, she may begin to creep into your "classes". It may be years. For now, give her her space.