so she carves out her own space where she feels more secure and in control by becoming a vegetarian. She lacks confidence in her own abilities to deal with the world so test scores become the only measure of her worth.
Remind her that she is worthy of her own love. Take responsibility for herself by knowing and accepting who she is. Work on her abilities to deal with the real world by understanding human nature.
Give her choices. Ask her opinions on things. Respect her as an individual.
Having empathy for others may also be an indication of needing empathy from others.