Dreams set in schools often symbolize personal growth, learning, and transitions in life. In your dream, transferring to a new magic school suggests that you are entering a new phase or environment, possibly indicating changes or challenges you're currently facing. The presence of your best friend signifies support and connection, which may be comforting as you navigate these changes.

The unexpected nosebleed could represent a feeling of vulnerability or a sudden emotional release. It may indicate that you are dealing with stress or anxiety about fitting into this new situation. The teacher's remark about not wanting to deal with you may reflect feelings of being judged or unsupported in your waking life, echoing a fear of not meeting expectations.

Going to the restroom to handle the nosebleed symbolizes a need to take care of yourself and address your emotional or physical well-being. Returning to class after resolving the situation suggests resilience and a determination to move forward despite challenges.

Overall, this dream may be highlighting your adaptability in new circumstances, the importance of support from friends, and the need to manage stress. Consider reflecting on areas in your life where you might feel overwhelmed or under pressure and think about how you can seek support or take care of your well-being.