I’m more used to the Japanese names, so I will put down the US names next to it just in case. Plus some of the background story was removed from the dub.

What happens when somebody not used to lose starts failing?

They break, of course

(source)

To lose is an important part of growing up. Whenever we fail, we learn how to adapt and to react to that: some people give up and try something else, others insist on that, some change strategies or use it on their favor and so on.