YOU SAID:

my brother is older than me.

INTO JAPANESE

私の兄は私より年上です。

BACK INTO ENGLISH

My brother is older than I am.

INTO JAPANESE

兄は私より二つ上です。

BACK INTO ENGLISH

My brother is two years older than I am.

INTO JAPANESE

兄は私より二つ上です。

BACK INTO ENGLISH

My brother is two years older than I am.