Everything you feel is a chemical reaction of the brain. If you're in a state of greed the consequences as a trader may be amplified. The power greed has on your trading is that it destroys your safety net. Greed cause the individual to increase risk as they seek instant results to feed their lust. Greed distorts reality into fiction, and the results may be devastating.
Thus for any inspiring traders out there minimize your greed! There will always be opportunities for profit. There is a difference between confidence and greed. The former you believe in yourself and you defend yourself appropriately... the latter is based on wishful thinking. Don't be the latter, if you're the latter you've given up all that you've learned, and you turned to luck.
Confession: When I first started trading I was greedy. Every trade I made my exposure was too great whether it was a good trade or bad. After making these errors for months it finally hit me... to trade long term, defense is just as important as offense. Offense propels you forward, but with defense you can't ever go backwards. This reconstruction brought me to another level.
-Millennial Mark