I think you are a "true quilter". I don't prewash my fabric either. I like the feel of new fabric in my machine. And I don't scorn thrift store fabric either. I found some wonderful pieces in bags of fabric at a local (at the beach) thrift store a few years ago. Some of the fat quarters were still tied with ribbon and tags from a quilt shop. Don't be so hard on yourself! You're doing a great job caring for your family. Enjoy your quilting! And remember to take care of yourself too!