2 lives

I live two lives, two totally different lives. ”isn’t that hard?” people ask. Yes it is. It is hard to change personality every week. On one side I'm the big sister, the perfect daughter, raised strictly. On the other I'm the baby of the family, the favorite, the only child. Sometimes I don't even know who I am. Am I introvert or just shy? Am I proud or just selfish? Am I myself or just a reflection? Who am I? Who’s the person with 2 lives?