Well let's see. I been busy with modules so I don't have much time to test your bot but I have something to ask about what sites that you can use this bot?. As the thread title said that it's for bitcoin dice roulette. I have read and learn that some bots can be customized as you have mentioned and I did know about it. I also found that some bots are only applicable for the site that it based. Example: 777coin bot for 777coin site only.
Some sites are very fast and some sites are very slow. But fast sites always require a minimum size of bet which is more than 1/100,000,000 of the currency.
You are right all, gambling is not for sustainable profit. Gambles are for entertainment. The feeling of conquering the house is very fantastic. Never play with the money you cannot afford losing.