Error. Does not compute.

On a serious note, that's your problem. There is no strategy that will win in the long term when you're gambling on a -EV game - countless people have tried (including mathematicians) to find a way - but there isn't currently one known and in all likelihood will never be (it's completely illogical). As to winning in the short term, there ARE some strategies that do tend to work better (i.e. take the Oscar's system http://www.blackjackforumonline.com/content/Betting_Systems_Oscars_Blackjack_System.htm).