There is no point in worrying about past mistakes.
過去の過ちについて悩む意味はありません。 (kako no ayamachi ni tsuite nayamu imi wa arimasen.)
"We can’t change the past, so what’s done is done."
"私たちは過去を変えることができません、だから済んだことは済んだことです。" (watashitachi wa kako o kaeru koto ga dekimasen, dakara **sunda koto wa sunda koto** desu.)
very eager or excited to start something
to suddenly become angry
to achieve more than before, to improve
to reach the intended audience effectively
to impress or surprise someone very much
to succeed or fail by your own efforts
