cry over spilled milk

He was upset about the mistake, but his mother told him not to cry over spilled milk

The project failed, but we can't just sit here and cry over spilled milk

She was disappointed by the rejection, but she knew it was pointless to cry over spilled milk

It's a shame the event was cancelled, but there's no use crying over spilled milk

He lost the game, but he's not the type to cry over spilled milk; he'll just train harder

Don't worry about the small error, there's no need to cry over spilled milk

They missed the deadline, but dwelling on it won't help; it's time to move on and stop crying over spilled milk

She wished she had studied more, but she realized it was too late to cry over spilled milk

The business didn't succeed as planned, but the owners decided not to cry over spilled milk

It's a minor setback, and we shouldn't cry over spilled milk