(it's/there's) no use crying over spilled milk

(it's/there's) no use crying over spilled milk

proverb It does no good to get upset over a bad decision or unfortunate event that has already come to pass and cannot be changed. We were pretty disappointed to have lost the championship game, but there's no use crying over spilled milk. We just have to train harder for next season! I know you really wanted that job, but you weren't hired, so it's no use crying over spilled milk now. I was such a fool to take out that second mortgage. Oh well, no use crying over spilled milk!
See also: crying, milk, no, over, spill, use
Farlex Dictionary of Idioms.

It's no use crying over spilled milk.

 and Don't cry over spilled milk.
Prov. Do not be upset about making a mistake, since you cannot change that now. I know you don't like your new haircut, but you can't change it now. It's no use crying over spilled milk. OK, so you broke the drill I lent you. Don't cry over spilled milk.
See also: crying, milk, no, over, spill, use
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

it's no use crying over spilled milk

or

there's no use crying over spilled milk

If you say it's no use crying over spilled milk or there's no use crying over spilled milk, you mean that people should not worry or be upset about things that have happened and cannot be changed. Note: `Spilled' can also be spelled `spilt' in British English. It didn't work out, but there you go. It's no use crying over spilt milk. Note: This expression is very variable, for example no use can be replaced by no good or no point. Often, the expression is said without it's or there's. Oh well, it's done now. No point crying over spilt milk.
See also: crying, milk, no, over, spill, use
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • teach a man to fish
  • it takes a village
  • village
  • change horses in midstream, don't
  • best-laid plans go astray, the
  • the best-laid plans
  • the best-laid plans go astray
  • the best-laid plans of mice and men
  • bad habits die hard
  • all cats are gray after dark/at night