Dream and go back to the dormitory. You see a turtle. Tortoise was an auspicious animal in ancient China. Look at the custom of throwing money at turtles in Buddhist temples and you will know its symbolic significance! There is a turtle in your bedroom, but it is dirty, so you can also correspond to it. This dream points to your low evaluation of yourself or your birth, family background, etc., your subconscious disgust, or your feeling of being looked down upon by people because of class problems!
Dream suggests that you should adjust your understanding and mentality so that you can get leisure and wealth! Affirm yourself, accept yourself, accept the environment and be grateful. What you get is precious wealth and real leisure!
Good luck!