YOU SAID:

自分が道具だと改めて理解をした

INTO JAPANESE

千が道具だと改まり理解をした

BACK INTO ENGLISH

I understood again that a thousand is a tool

INTO JAPANESE

千は道具だと改めて理解しました

BACK INTO ENGLISH

I realized again that a thousand is a tool

INTO JAPANESE

千は道具だと改めて気づきました

BACK INTO ENGLISH

I realized again that a thousand is a tool