YOU SAID:

...You better not be planning to high-

INTO JAPANESE

...あなたは高い計画を立てない方がいい

BACK INTO ENGLISH

...You shouldn't make high plans

INTO JAPANESE

...あなたは高い計画を立てるべきではありません

BACK INTO ENGLISH

...You should not plan high

INTO JAPANESE

...あなたは高く計画すべきではありません

BACK INTO ENGLISH

...You shouldn't plan high

INTO JAPANESE

...あなたは高く計画するべきではありません

BACK INTO ENGLISH

...You shouldn't plan high