Wanda lost more than her confidence. They all lost a bit more than just what's on here. Steve lost some of the people he called family. Natasha is forced to be a government pawn again. Wanda lost her freedom, her confidence, her trust in people.
All infinity stones revealed by Marvel Cinematic Universe until Age of Ultron/ oh and I was looking for a chart like that one. With all the infinity stones and their locations. I think the last one is at the Eye Of Agamoto, in Doctor Strange's pendant.