There's no success in gambling. You just got lucky in a a very short time and then lose afterwards. I have lost alot many times in gambling and until now I still gamble a few times but i dont bet big amount, it's just like gambling for fun, I dont want to be broke just by losing all my money in gambling.
Being lucky itself means to people being successful. Because not every one can be lucky and if you are lucky then mostly success will be near or with you and you can easily achieve money, fame, name etc. In gambling as well you require the luck with you to be successful in making the bet win.