I or friends I have done this one way or another. The list has a certain order which I considered important last being the worst. 1) trade under funded and under pressure (financial need for money) 2) trade bigger because of ego.(size kills and girls like size elsewhere 3) afraid to go short. 4) trade for no reason just to pass time or gamble. 5) buy dips and sell rallies contra trend, sooner or later the market will squash you like a bug. Always buy on dips when the market goes up, sell bear market rallies (short), think longer 2-14 days or more) some do the reverse now, buying on dips..... 6) trade without a risk reward ratio. 1:3 is I think a minimum. 7) trade when risk reward can't be quantified or uncertain to get out at the pre-set limit loss. Bad fills, scalping can all qualify 8) trade without a plan (set #6, follow clear hunches, read the tape watch simple indicators $VIX and follow it as gospel) 9) freeze on a small loser and make it a disaster. 10) trade when you know you can't make any money Follow these every single one and I am sure you will make $$$$ and send me my royalty check.