You loose, because the balance was too low - 0.013 BTC. If you have larger balance - 0.8 - 1 BTC in 10 - 15 minutes you win. Your balance was the reason why you loose. Simple.
Firstly, we can read what you are saying clearly and there is no need to highlight your posts in red all the time. Coming to point about balance, I have no idea why you think that a larger balance would guarantee profits.
Casinos implement upper limits to bypass this issue which is why your strategy might be effective in the short term, but it will never work in the long term. Don't act like you found the holy grail of gambling or anything.