Dreaming about roller skating with high school friends in a mall can carry several meanings. Here are a few interpretations:

1. Nostalgia and Reflection: This dream may reflect a longing for the carefree days of your youth. High school is often associated with friendship, fun, and less responsibility. It could indicate that you miss those simpler times or are reminiscing about your past.
2. Social Connections: Being with friends in your dream suggests that you value your social connections. It might also mean that you are seeking to strengthen your bonds with those from your past or that you are in need of support and companionship in your current life.
3. Playfulness and Freedom: Roller skating is an activity that symbolizes freedom and playfulness. This could imply you are looking for more joy and spontaneity in your life. It may be a reminder to embrace fun and not take things too seriously.
4. Navigating Life’s Challenges: The act of skating can also represent the way you navigate through life's ups and downs. If you felt confident while skating, it could signify that you are managing your current situations well. If you felt unsteady, it might reflect uncertainty or challenges you are facing.

Consider how you felt during the dream and any specific details that stood out to you, as they can provide additional insights.