This dream is rich with imagery and emotions that can provide insight into your subconscious thoughts and feelings. Here are some interpretations of the various elements of your dream:

1. Conflict and Chaos: The fighting you observed outside may symbolize feelings of conflict or stress in your waking life. It could reflect concerns about your environment or relationships, possibly indicating that you feel overwhelmed by chaos or negativity around you.
2. Journey and Escape: The boats and ships can signify a desire to escape from your current situation or a need for change. Being on a boat often represents a transition or journey, suggesting that you are navigating through life’s challenges and searching for a safe harbor.
3. Perspective Shift: Experiencing the dream from the perspective of another woman may indicate that you are trying to understand someone else's point of view or that you feel interconnected with others’ experiences. This could suggest empathy or a desire to lead or support others through turmoil.
4. Destruction and Renewal: The crumbled buildings and cars on fire represent destruction but may also signify a need for renewal or transformation. You might be going through changes in your life that feel chaotic but are ultimately necessary for growth.
5. Childhood and Family Dynamics: The appearance of your family members, especially your dad as a firefighter, indicates a sense of protection and safety. Firefighters often symbolize rescue and support, suggesting that you may be seeking or relying on family for stability during turbulent times.
6. School and Relationships: The school setting and interactions with your cousins may reflect social dynamics and your feelings about family relationships. The moment with your cousin could suggest feelings of misunderstanding or the need to communicate more effectively within your family.
7. Emotional Sensitivity: Your brother’s feelings being hurt in the dream may reflect your sensitivity to the emotions of those around you. It could indicate a desire for harmony and understanding within your family.

Overall, this dream seems to encapsulate themes of conflict, the search for safety, and the importance of family support. Consider reflecting on any current challenges in your life and how they might relate to these dream themes. It may be beneficial to communicate openly with your family about any feelings of tension or misunderstandings you may have.