I'm in high school, my cousin wants to leave to do something fun, my grandfather wants to wash my hair, there's a shooting at the school "oh God, it just keeps coming"
This dream could suggest the feeling of being overwhelmed by multiple responsibilities in your waking life. Being in high school could represent a sense of feeling young or inexperienced, while your cousin's desire to have fun may reflect a desire for more enjoyment or levity in your life. Your grandfather wanting to wash your hair may symbolize the need for comfort and care from an older, nurturing figure. The shooting at the school could represent fear or anxiety about a threat to your current situation or environment. Overall, the dream may be reflecting the need to find balance and security amidst chaos and unpredictability.