YOU SAID:

A amateur does something until he gets it perfect, but a professional does it until he cant get it right

INTO JAPANESE

アマチュアは完璧になるまで何かをするが、プロはうまくいかなくなるまで何かをする

BACK INTO ENGLISH

An amateur does something until it's perfect, a professional does something until it goes wrong

INTO JAPANESE

アマチュアは完璧になるまで何かをする、プロはうまくいかなくなるまで何かをする

BACK INTO ENGLISH

Amateurs do things until they're perfect, pros do things until they go wrong

INTO JAPANESE

アマチュアは完璧になるまでやる、プロは失敗するまでやる

BACK INTO ENGLISH

Amateurs do it until it's perfect, pros do it until they fail

INTO JAPANESE

アマチュアは完璧になるまでやる、プロは失敗するまでやる

BACK INTO ENGLISH

Amateurs do it until it's perfect, pros do it until they fail