The same accident does not happen twice; the same person does not have the same luck again. A proverb. Billy won a pony in the contest last year, but lightning never strikes twice in the same place.
LIGHTNING NEVER STRIKES TWICE IN THE SAME PLACE
Meaning of LIGHTNING NEVER STRIKES TWICE IN THE SAME PLACE in English
American idioms English vocabulary. Английский словарь американских идиом. 2012