YOU SAID:

I just don’t know when to start.

INTO JAPANESE

私はちょうど開始するか分からない。

BACK INTO ENGLISH

I don't know I just started.

INTO JAPANESE

私は始めたばかりとは知らない。

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And just getting started I don't know.

INTO JAPANESE

分からない。

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I don't know

INTO JAPANESE

私は知らない

BACK INTO ENGLISH

I don't know