"What's the worst thing you can do to a man who has lost everything? Give him back something he had, that's broken."
So, the trading equivalent for me is not failing, but getting oh so close to succeeding and then have that holy grail skip off into the distance again.
I've worked on quite a few systems over the last three years. I've had huge fun building on my programming skill and data analysis, which is enjoyable and satisfying (and it kept me out of the pub). And the general trend is that each gets a little closer to meeting my goal.
Today was an auspicious one for me. I just needed two small wins to bring me up to three consecutive months of profit. Not huge profit, but on the right side of zero. Then, bang - two losses. *Haven't had two losses in one day since I started this system in October. Financially, it wouldn't really have been different if the losses had come along tomorrow. But psychologically, 3 months of profit did seem a big milestone and to have missed that by one day is sickening.
Very disheartened at the moment. But I hope that tomorrow I'll feel a bit more like "Hey, 2 months and 30 days is good, let's make it 6 months next!". But at the moment, it's all a bit bleak.

Ian
* I'm laying, and only a handful of trades each day, so even a single loss is a bit setback.