Ask feng shui master to answer feng shui questions in dormitory.
If the room is full of yin qi, you can keep an ever-burning lamp (there are several watts of yellow energy-saving lamps day and night) to increase yang qi. Go to the drugstore to buy cinnabar and sprinkle it on the corners and the ground around the room (this can ward off evil spirits). Everyone wears a peach stone carving handicraft (peach stone can ward off evil spirits). There is a dried gourd hanging on the left side of your bed. Take a piece of red paper for the mirror (sprinkle some cinnabar on the paper for reuse) and cover all the mirrors. You can buy a bunch of grapefruit leaves, soak them for ten minutes and scatter them all over the house. Everyone had better wash their faces and hands with that water once. Doing the above can make a few people sweep away their bad luck and start over.