It ends with the word losers because they are all losers in the end even if somebody wins. What was lost was the desire to win because everybody swam and some people thought that they are the best are they just can't do it. So mainly, nobody had the wit to think that the could do more than just win.
Because and at are the two preposition in it
Internal conflict is conflict that is inside the character
Hello! I believe it would be sand in the ocean