YOU SAID:

I went to school and then I realised that this wasn't the place I wanted to be in.

INTO JAPANESE

学校に行ったら、ここが自分の行きたい場所ではないことに気づきました。

BACK INTO ENGLISH

When I went to school, I realized that this wasn't the place I wanted to go.

INTO JAPANESE

学校に行ったとき、ここは行きたい場所ではないことに気づきました。

BACK INTO ENGLISH

When I went to school, I realized that this wasn't the place I wanted to go.