Don’t waste time worrying about things that have already happened.
No pierdas tiempo preocupándote por cosas que ya han sucedido. (No pierdas tiempo preocupándote por cosas que ya han sucedido.)
"Don't cry over spilled milk; learn from your mistake."
"No llores por la leche derramada; aprende de tu error." (No llores por la leche derramada; aprende de tu error.)
to maintain order and avoid conflict
A pessimistic attitude or perspective
to be the first to do something or lead the way
Mutual compromise or cooperation.
to reduce the level or amount of something
to assert authority and dictate how things should be done