How do you stop being jealous of your mother?

I look at pictures of my mother when she was my age she was actually VERY PRETTY. I am not saying this because she is mother and I feel so jealous because I did not inherit her hourglass figure, light caramel skin, small lips, etc.
When I hear stories of how many boys liked her and how she was a beauty queen. I feel so jealous. I wish I had her life.
If she gave birth to me, how come I am not pretty like she is?
Even today people still say my mother is attractive even though she is in her last 40s