This dream may symbolize your feelings of being stuck in a familiar situation, represented by the college dorm and the people you worked with. Despite being in a different environment, nothing has changed and the people who disliked you before still do. This could reflect your fear of being unable to escape negative relationships or situations in your waking life. The addition of lockers in the hallway may represent a need for organization or compartmentalization in your life. The desire for a tattoo could symbolize a desire for self-expression or a need to make a permanent mark on your life. The missing high school friend may represent a part of yourself that you feel is missing or lost. The fact that you are the one who knows his location could suggest that you hold the key to finding this missing aspect of yourself. Overall, this dream may be urging you to confront and address any stagnant or negative aspects of your life in order to move forward and find a sense of completeness.