I have had to deal with the knowledge that my sister is a billion times prettier than me since puberty. She is the most popular girl in her year and I'm near the bottom. I know that I'm not ugly, but compared to her I feel like nothing. Everything is a competition for me, she has a boyfriend that loves her and loads of friends and I have nothing like that even though I'm three years older than her. I feel like a joke. I don't know what to do, I love her but I hate how jealous she makes me feel. Everyone compares me with her and It hurts my feelings so much.