A reform school is read as the feeling of being corrected or kept in line. Dream books take it as an inner critic that wants you to change, and ask whether the change feels fair.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.