what decision has the main character had to make?do you think he/she made the right decision?

I think alliena made the right decision of becoming a she could become a star swimmer.I think she`s a good swimmer because she almost swam all the way to Florida.That`s why I think she made the right decision.The setting is mostly in the water.she feels so happy that she knows how to swim that far.That`s all I know so far.