YOU SAID:

I'm an aspiring author, who writes novels and is tired.

INTO JAPANESE

私は小説を書いて疲れている意欲的な作家です。

BACK INTO ENGLISH

I am an ambitious writer who is tired of writing novels.

INTO JAPANESE

私は小説を書くことにうんざりしている野心的な作家です。

BACK INTO ENGLISH

I am an ambitious writer who is tired of writing novels.