Break While/Do Loops

Ok , first of all in C++ Break means Exit the While Loop , but in Autoit ExitLoop means Exit the Script so i want an example to stop the loop without exiting the whole script

my code is :


I tried that with HotKeySet but it don't stop the loop and when i use Exit Loop it exit the script and when i use While NOT $off > 0 all of this exits the script

So please give me an example without closing the script.