Dreams involving competition, especially in a game-like setting, often reflect your feelings about challenges and conflicts in your waking life. In your dream, being chosen to participate in a game similar to "The Hunger Games" may symbolize a feeling of being thrust into a situation where you must prove yourself or compete for recognition. The emotional farewell to your mom suggests a sense of vulnerability or anxiety about leaving your comfort zone.

The separation into teams and the familiarity with the participants could indicate that you are navigating social dynamics, possibly in school or other group settings. Your awareness of the people involved might suggest that you feel judged or evaluated by those around you.

The struggle over tampons hints at the need for preparedness and self-care, especially when facing uncertainties. This may reflect your subconscious concerns about managing personal needs while dealing with external pressures.

The final fight in a beautiful open area signifies a climax in your journey, representing the culmination of your efforts and the confrontation of challenges. It could highlight your desire for resolution and clarity amidst competition.

Overall, this dream might encourage you to reflect on your current life situations—how you handle competition, your relationships with peers, and the importance of being prepared for challenges. Consider what in your waking life feels competitive or challenging, and think about how you can navigate those situations with confidence and care for yourself.