I have tried the D'Alembert System (what you are doing) and it can really bite you! Two suggestions: You are seriously overbetting with more than a 1% opening bet. I would suggest $1 per $500 invested. Your choice of game is poor, if you choose to pay 5% commission, play the Banker bet at Bacarrat which wins 50.68% of the time. If you play
BJ you can drop two bets down after a DD win or
BJ. (I would only increase bet by one unit after a DD loss). But the most important thing is to find the software with the least amount of streakiness. Better Luck!(you're gonna need it!)