Misogyny is a mental illness usually manifested as disgust and fear of the opposite sex, which may affect a person's daily life and behavior. According to the information you provided, you are 18 years old and hate girls of the same age as you. You will feel afraid and run away when you see them. This may be due to your incorrect understanding and prejudice towards women's behavior and thinking, which makes it difficult for you to interact with others. Although you may feel scared and run away, you should try to seek help and support to help you understand and deal with your feelings and emotions. This may include talking to a psychologist or a healer to understand your situation, learn effective coping strategies, and receive support and guidance. At the same time, it was also important to understand women's behavior and ways of thinking, as well as to try to change one's own views and prejudices. This might include learning how to better understand and respect women and how to build healthier and more equal relationships. I hope that you will receive help and support to overcome your misogyny and live a healthier and happier life.