I dreamed that my sister cut my hair terribly short, i screamed about it and lamented over my lost hair. I don't remember her words, just her lips moving but the anxiety of losing kept through the morning
Dreams about hair often represent our personal power and self-image. Your sister cutting your hair short may indicate that you feel like someone close to you is influencing or manipulating your sense of self-worth and power.
The fact that you screamed and lamented over the lost hair in the dream suggests that you are feeling powerless and afraid of losing control in a situation. You may be feeling insecure about being heard or taken seriously by others.
The anxiety you felt after waking up may indicate that you need to assert yourself more in waking life and not allow others to control your decisions or sense of self. It may be important to speak up and communicate your needs to others in order to feel more empowered.