Just look at this screenshot and you know what I mean.

Statistics is something of really cool because it shows to you that something that is really easy will ruin you in the long term, and something of impossible can become possible in rare case. Simulator act only for maths low
but doesn't predicts also human behavior (you would continue a negative series of 15 bets?), so this stats doesn't work so good, don't think about it and play with your method, this is the best thing for you, and it will be
always.