The last statement is the best
evidence that support conclusion of Gilgamesh being courageous. In last statement emphases courage as overcoming and confronting fear (in this
example Gilgamesh overcome his fear with the support of a friend Enkidu).
I would say my rating of the boy was because technically he did wake up and go to work every day but he did not put as much effort as he can. He also did not finish the job and presume to quit as soon as possible.