YOU SAID:

but i need to get insulin before that

INTO JAPANESE

でもその前にインスリンを打つ必要がある

BACK INTO ENGLISH

But before that, I need to take an insulin shot

INTO JAPANESE

でもその前にインシュリン打たなきゃ

BACK INTO ENGLISH

But before that, I have to take an insulin shot

INTO JAPANESE

でもその前にインスリン注射しなきゃ

BACK INTO ENGLISH

But before that, I have to inject insulin.

INTO JAPANESE

でもその前にインシュリンを注射しないといけない。

BACK INTO ENGLISH

But before that, I have to inject insulin.