
This is an idiom meaning you shouldnt waste your time morning over mistakes that you can not undo.Do you have the same idiom in tamazight? or do you have another saying with the same meaning? tanmirt.

Thanks for your question,
Tanemmirt ɣef tuttra-nnem,
Yes, we have an equivalent in the form of a proverb:
Ih, ɣur-neɣ amtil, d yiwen n wanzi:
Like oil, once spilt, it can't be collected [again].
Am zzit, mi ara tenɣel, ur d-ttnejmaɛ ara.
Ar timlilit