If you are a good gambler have good skill of gambling and experience with good luck you can really grow bitcoin in a very very short period of time, you just need to invest some money in gambling and if you are a luck person you will really increase your bitcoin in a sort time.
Would be quite interesting to know who a good gambler really is? The one that is always depositing but never withdrawing from a casino or the one that is hoping against hope that his ship is on the way? Gambling is not an investment and should not be treated as such, otherwise the folly can only gets worse. . Growing one's bitcoin, especially by beginners should never be calculated for in the short run.
It is really hard to hope for a gambling as hope to grow your bitcoins. Instead of playing against the house it is more recommendable if you are going to be in the favor of those house by investing into their bankroll casino's. I think this is much more effective to grow your bitcoins if you are going to do this to your bitcoin, rather than playing it alone with gambling.