Looking for opinion on Risk Management Psychology. I've develop my trading system over many years. It makes 1.5% to 2% per week consistently. Only 2% of capital is risked per trade. I trade only 0-2 times per day. I managed to stick to the rules most of the time. However, every 2-3 weeks or so, I sorta go crazy and start risking 20-30% of capital. This usually ends in tears. I don't understand what causes this. I suspect this also affects all the "rogue traders" out there. My best guess is that after constant wins, I go into a sort of euphoria and think I can get rick quick and start increase position size. I can't seem to overcome this mental handicap. Another possibility is that when markets are ranging and there is not much action, I get bored and am looking for action. I am now reading "Trading in the Zone" to see if it has any answers. Has anybody experienced this and overcome it? Please share.