Gambling is the fastest way to double your bitcoins in a day or even in an hour if you are really lucky. Life is a gamble anyways so it's up to you to decide on that.
if you believe in life is a gamble then you must believe in do or die too. If you go for gambling then you can make profits if you are lucky. Otherwise it will become a poor. Never suggest gambling a way for doubling your bitcoins and never go for do or die options.
Gambling is not a good idea to earn double yes hes right if your lucky you gain big profit what if your unlucky your making yourself poor and maybe you become beggar cause you gamble the money. The best suggestion to double your money is to do tradings you can earn more their without fear of be scam
Around this time it is really hard to doubling your Bitcoins now around this time, that value is not even rising and gambling can be very risky for all of us.
So the best thing is that you have to wait and see for what will happen with the future later.