Feng shui in girls' dormitory
That's what happens when the sun is weak. This has something to do with the outdoors. You said it was your dormitory, so it's not that easy to change. Tell the people in the southwest corner to sleep in another direction and try. You can't see the surrounding environment and internal situation of your dormitory. You can only try such a simple story, or you can spray some spirits in the dormitory. This can refresh you, make you in a good state of mind and have little influence!