I don't recommend gambling.
I lost 3 BTC to this shit site, rigged af.
PLEASE DON'T GAMBLE! EVEN NOT ON THIS RIGGED SITE TRASH.

So sorry about your lost mate it's very frustrating if you have lost that much but next time, don't blame your misfortune to the casino where you gamble.
Don't forget that you should gamble what you afford to lose.