I am sure that there is luck for the beginner in a gambling game, but most of them don't have luck in their first time in gambling. so base on your story, you have a big success in your first time, and you can win a lot of money.

for my first time in gambling, I don't have big luck, and although I can win the dice game, it doesn't mean my winning money is big. at least, I can get my money back so I can come back in the next day. and yes, I believe for the beginner's luck in gambling and it could happen to anybody.