Luck

on a roll

Meaning: making a lot of progress

Example: Our team has won eleven out of our twelve matches this season. We are on a roll. Read on

all the best

Meaning: a polite way to end a letter or email

Example: We would like to wish you all the best in the year to come. Read on

third time’s a charm

Meaning: to say that when a person tries to do something, it works out at the third attempt

Example: The fellow finally managed to pass his exam. As they say, third time's a charm. Read on

break a leg

Meaning: good luck

Example: "Break a leg!" shouted the stage director to his actors before the beginning of the play. Read on

fingers crossed

Meaning: a gesture of crossed fingers used to express good luck

Example: Good luck with your test tomorrow, I'll have my fingers crossed. Read on