If you crack me once, I won't break.
You can continue once, twice... nine times!
Then it's time for a break.
What am I?
Knuckles (aka joints in your fingers)
Cracking your knuckles doesn't break (fracture) them. And you can continue 9 more times after the first, since there are 10 fingers (usually...), but then you need a break (interlude) before they can be cracked again
a password being bruteforced
One need to be very, very lucky to crack a password from the 1st attempt (or the password needs to be very weak). However, some APIs (protocols etc.) detect bruteforcing and after a certain number of attempts ("1, 2... 9 times") block further tries for a while ("it's time for a break").