Well one time I was in the casino. And sorry it was cash no Bitcoin.
I just got there having fun yes I earn dubble the money I had. But I lost it because I played more and more.
But that is gamble to me play to lose your money.
And No gambling is not wrong is just how you deal with it.
I think gambling is good to do if you have your extra money.
If you win dubble the money you should have stop

because you will lost as you said.
That is my only trick just stop when you win dubble.
if you double, then save 3/4 of what you have and keep playing with the other 1/4, so you will have profit even if you lose everything and still can earn more