What does Adeline decide to enter? Why was she hesitant at first?

Since the holidays were not yet over, Adeline had to spend a lot of time by herself at Sacred Heart. Suddenly, she is smitten by the idea of taking part in a playwriting competition that is open to students from around the world. She does not think she will win and wonders how her family will react. Although she is afraid, Mother Louisa encourages her to take the shot. She receives her first piece of mail, the instructions on how to take part, soon after.