Saying "good luck" wasn't intended to be helpful or encouraging in any way.
It was intended to point up that, if you haven't figured it out yet, your ultimately on your own.
Placing the responsibility of your life on other people isn't going to get you anywhere.
If it ever occurs to you that it is up to you what happens to your life, then your on your way.
Until then, well, - Good Luck! Cuz your gonna need it - just like at the casino.