I think she feels a bit discouraged because she doesn't believe she is as good as the rest of the tributes. Most of them have spent their entire lives preparing for the Hunger Games, whereas Katniss volunteered to save her sister. She was unprepared for the Games, but learned the ropes over the course of the training.
The answer is Pierre Bourdieu. His work was essentially worried about the progression of energy in the public eye, and particularly the differing and unpretentious manners by which control is exchanged and social request kept up inside and crosswise over ages. In cognizant restriction to the romantic convention of quite a bit of Western reasoning, his work regularly accentuated the bodily idea of social life and focused on the part of training and encapsulation in social elements.