Kara Zor-El (Melissa Benoist) has been fighting some serious self-esteem issues over the past few weeks of Supergirlas she tries to prove she's as good as Superman, or as charming as Lucy Lane (Jenna Dewan-Tatum) or a capable female superhero. What if she ate all those sticky buns and couldn't stay a Size 2? What if she woke up with pimples and had legitimate cause to wonder how she could ever be as pretty as Lucy?