Yes,I found success (win) in gambling many times but most of the times I lost,just understand the many and most so totally we are going to lose our money more than winning here,so if your intention is to make money then invest on something with less risk.
If you have lost most of the time than winning, I do not see how that can be classified as being successful in gambling. Gambling is just a means of someone who have so much money to throw away losing it which is why I find it amusing to see someone who is trying to manage himself end up gambling so as to be able to use that medium to possibly get rich overnight and the last time I checked, things like this does not work at all in gambling. Success can come in an investment, or some profit making venture, but gambling is not any of that.