When i play poker and make mistakes, i usually notice that i made this mistake right after i made it.
This occurs especially in risky situations with high pots an low chances to win. This emotion, this eagerness to know if you win or not is my worst enemy in poker.
Until now there were only a few situations where i noticed it before making the wrong decision.
If you want to be a successfull poker play keep one thing in mind: always act rational, observe your emotions and fight against their voices.