How can I help my daughter build stronger friendships after her breakup, especially if she feels like she has no one to turn to?

Does taking drugs bring out someone's true personality, or are they a victim of their brain chemistry? How can I distinguish between the 2 when judging their bad behaviour?
Is Avril Lavigne the strongest person in the world? In the music video for Complicated she reels him a guy like a fish with a fishing rod. She seriously has to be the strongest person in the world to do that.