I lost $785 in 16 seconds this AM because my auto-entered-upon-execution ER2 stop was too tight. I shorted nicely and it backed up on me in a blink of an eye. It then stopped dead in its tracks after stopping me and then went in what would have been my favor for over three points.
Don't beat yourself up over it. We all make mistakes, ESPECIALLY in this much highly voliatility we're enjoying. The fat fingers/tight stops that worked (or didn't hurt us) two weeks ago is screwing us right now.