6th Commandment of Profitable Trading- Reduce your risk 

The sixth commandment of profitable trading is to reduce your risk. If you think you should be risking this much, you probably should be risking that much. The ideal amount to risk on a trade is usually far less than you think because unforeseen events happen. Crazy things happen in the stock market. Markets crash and stocks have bad announcements and earnings, and sometimes there are bankruptcies and all sorts of things. Therefore, you’ve got to trade with very low risks so that none of those crazy things helps you survive, stay in the game, and make long-term money. Thus, reduce your risk even less than you think it should be.