Dreams can often be a reflection of our subconscious thoughts, feelings, and experiences. Let's break down the elements of your dream:

1. Going to Australia: Traveling can symbolize a journey or exploration in your life. Australia, known for its unique wildlife and landscapes, might represent a desire for adventure or a change in perspective.
2. Swamp: Swamps can symbolize confusion, emotional turmoil, or feeling stuck in a situation. Being placed in a swamp could indicate that you feel overwhelmed or uncertain about a particular aspect of your life.
3. Tent with five others: A tent often represents a temporary situation or a sense of community. The presence of others could suggest you are seeking support or connection, or that you are navigating a shared experience with others in your life.
4. Talking insects and the "charming devil" crab: Insects can represent small annoyances or nuisances in your life. The "charming devil" crab may symbolize something that seems appealing but has a potentially harmful side, like a situation or person that's intriguing but could cause discomfort.
5. Diagnosing a woman with red growths and flies: This part of the dream might reflect feelings of responsibility or concern for others. The red growths could symbolize a problem that is becoming more serious, and the human sacrifice element may indicate a fear of losing something important or making a significant sacrifice.

Overall, your dream seems to explore themes of navigating challenges, feeling overwhelmed, and the importance of community and support. It may be beneficial to reflect on any current situations in your life that resonate with these themes. Consider reaching out to others for support as you navigate through your challenges.