YOU SAID:

I travelled when I was young and it was hard.

INTO JAPANESE

私は若い頃旅をしたが、それは大変だった。

BACK INTO ENGLISH

I travelled when I was young, but it was hard.

INTO JAPANESE

私は若い頃旅行したが、大変だった。

BACK INTO ENGLISH

I traveled when I was young, but it was difficult.

INTO JAPANESE

私は若い頃旅行をしたが、それは難しかった。

BACK INTO ENGLISH

I traveled when I was young, but it was difficult.