I've played with the gambling capital of 0.15 BTC . all gone in one day. I wondered why I did not stop when the money I left 50% of the total. but I knew it was a risk in gambling. I still like gambling regardless of the outcome it 
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.As long as you having fun and I certainly hope you can afford to gamble that that. 0.15 btc is a fair amount, losing that in a day is a large amount though I feel. Maybe you made it back ? Hopefully better days are ahead of you and you will recover your loss. Just keep your head about you and be careful.
gambling is a game that requires intense concentration.
Gambling should be treated as a game and not to become rich or whatsoever.
We cannot get money in just one click; sometimes we lose all our money too because of gambling.
Don't let gambling to be your priority.