YOU SAID:
My latest hyperfixation is 19th century oil paintings
INTO JAPANESE
私の最近の熱中は19世紀の油絵です
BACK INTO ENGLISH
My latest obsession is 19th century oil painting.
INTO JAPANESE
私が最近夢中になっているのは、19世紀の油絵です。
BACK INTO ENGLISH
My latest obsession is 19th century oil painting.
That didn't even make that much sense in English.