现在流泪是当初脑子进了水
[xiàn zài liú lèi shì dāng chū năo zi jìn le shuĭ]
'Crying Now Is Because My Brain Was Flooded Back Then,' conveys reflection tinged with irony regarding previous irrational actions. Here 'water in brain' suggests moments driven by whims without careful consideration leading later on inevitable consequences (tears). It captures self-satirizing retrospectively assessing youthful impetuous decisions.