YOU SAID:

There is a snake on my both

INTO JAPANESE

私の両方に蛇がいる

BACK INTO ENGLISH

There are snakes in both of me

INTO JAPANESE

私の両方にヘビがいる

BACK INTO ENGLISH

I have a snake on both sides

INTO JAPANESE

両側に蛇があります

BACK INTO ENGLISH

There are snakes on both sides

INTO JAPANESE

両側に蛇がいる

BACK INTO ENGLISH

There are snakes on both sides