Being scared to make the trade. What's really sad is that this was after I'd developed a system with a high win rate. I'd call the direction of a market but would be fearful of placing the trade, then surely enough, the market would move in my favor....and there I was left telling silly ass stories about how right I was without having any profit to show for it. This stems from my early trading days when I used to jump into positions haphazardly and would win small then end up losing big. That feeling still lingers to this day and it wasn't until I learned to trade in spite of that feeling that I began to make money.