Your bad sleep in the dormitory has little to do with geomantic omen. You can only improve this situation through communication. Poor communication can only be adapted. You are a junior, which means you have lived in this environment for three years. If it was as serious as you said, you would have collapsed. Now you just feel uncomfortable because of the increasing pressure of postgraduate entrance examination, and a little thing can seriously affect your mood. Just relax yourself.
In the two years that I lived next to the train tracks, at the beginning, I was awakened by the whistle of the train in the middle of the night. After living for more than a month, I never heard the train call again, thinking that the tracks were abandoned.