cast stones against the wind

To do something that is futile or will not work out. Trying to get an A in Chem class now, after blowing off your assignments all semester, is like casting stones against the wind. You're doomed! It's too late to repair my relationship with my mother. I might as well cast stones against the wind.

Common Names:

Name	Pronounced	Usage
Gaios	-	Ancient Greek, Biblical Greek
Kirsi	KEER-see	Finnish
FeichÍN	-	Irish
Trecia	-	English (Rare)
Wystan	-	English (Rare)
Linsey	LIN-zee	English