Did you back-test the method, and for how long you tested on demo account, if no more than period of 3 months and different condition don't expect lots of success. I've done great with some system's for almost one month up to 2 months but, eventually when condition changes, go range volatile condition, etc
The systems fainted.

For knowing that given system will work, my personal opinion is you need to test it over the whole year, summer time we can see nice changes during August, going to September, then when Holiday's start etc.

Don't hurry with your expectations,

Best Regards,