most important is to keep on playing the game

The most important thing you must learn in trading the market is to cut your losses short and never ever take too big a loss. I know this from my personal experience. Keep drawdowns low ( 5%loss needs 5.3%gain for recovery, and 10%loss requires 11.1%gain for recovery, and 30%loss requires 42.9%gain just to get even, think about it ) and keep on playing the game day in and day out. Remember that "position neutral is A position" and if you stay in the game long enough you make lots of money.