YOU SAID:
is bad at geology to you don't want
INTO JAPANESE
あなたが望まない地質学が苦手です
BACK INTO ENGLISH
I'm not good at geology you don't want
INTO JAPANESE
私はあなたが望まない地質学が得意ではありません
BACK INTO ENGLISH
I'm not good at geology you don't want
That didn't even make that much sense in English.