one's own mistake
Тебе следует признать свою ошибку.
You should admit your mistake.
Я дал вам возможность исправить свою ошибку.
I gave you a chance to correct your mistake.
Мэри не признала свою ошибку.
Mary didn't admit her mistake.
Correct your mistake.
She doesn't admit her mistake.
He won't admit that he was wrong.
Что ж, Тай И, осознал ли ты свою ошибку?
Well, Tai Yi, have you realized your mistake?
— Нэчжа (2019)
I admit my mistake.