Translation of "私の人生で" in English

私の人生で初めて

It was the first time in my life

私の人生で最大の苦痛よ

Absolutely the most pain I’ve ever experienced.

私の人生でこれほど重要なことを

I couldn't help but feel I'd made a mistake

息子は 私の人生で 最高の先生でした

He was the greatest professor of my life.

あの日が私の人生で最高の日だった。

That was the best day of my life.

それは私の人生で最も重要な部分です

And it's the most important part of my life.

これは私の人生で決定的な瞬間でした

And this was a defining moment in my life.

それからの私の人生で 効果を発揮し続けました

but it went on to pay dividends for the rest of my life.