So sorry for your loss. Get some empty boxes and an egg timer. Set the timer for 15 minutes. Use the empty boxes for catagories, example: quilts, crochet, fabric. Be sure to mark the outside of boxes. After 15 minutes, go do something else. Give yourself a reward. Continue this until you have the catagories. Then look at your room and visualize how you want to store these things. All of our sewing room are evolving. Have patience with yourself. And take a box of tissue in with you. This is a way to be close to your mom and smile at your memories.