1) learn to smile while others toss bombs at you 2) withdraw
How about a 3)? If your daughter is displeased with being at the bottom of the social hierarchy, why not encourage her to be on top? Encourage strength and stop squashing ambition. Ninja Pizza Girl can photograph them back with scathing Instagram comments or whatever. She can get a makeover and work out, which will not only increase her social standing but improve her mental acuity and fight depression. The game should end with the other pizza girls fighting each other to be her best friend.