"In hindsight, I didn't know what I wanted to do at the time."
"When I look back and think about it, at the time I didn't know what I wanted to do."
- "In hindsight, I didn't know what I wanted to do at the time."
"in hindsight" 「振り返って考えてみる」
"I didn't know ~" 「〜わからなかった」
"what I wanted to do" 「何をしたいか」
"at the time" 「当時は」
- "When I look back and think about it, at the time I didn't know what I wanted to do."
"when ~" 「〜と」
"I look back and think about it" 「振り返って考えてみる」