She does not want to dwell on something that cannot be changed.
Explanation:
"Daughter of Invention" is a short story by Julia Alvarez that recounts to the narrative of a Dominican Republic family that needs to leave the nation and move to the U.S. which prompts various clashes and hindrances as they attempt to start another life and adjust to another culture. On account of the extract introduced the mother accepts she had designed a bag with little wheels however she before long acknowledged it was the innovation of another person, as a result of this she feels upset yet then acknowledge there is nothing she can do about the circumstance and on account of this she advises to her girls "There is no utilization attempting to drink spilled milk, that is without a doubt" which means the mother won't sit idle in some circumstance that can't be comprehended or change rather she will spend her time in progressively significant issues she is worried about. This implies, in this passage the mother Laura intends to express to her little girls "she does not want to dwell on something that cannot be changed".
For much of Jeannette's childhood, Dad's promise to build the Glass Castle represents both the family's hope and Jeannette's hero worship of Dad, but, as Jeannette grows older, the castle comes to symbolize his broken promises.
