It is important to exercise caution while trading. Because trading is risky. We must trade with caution here. If we are careful while trading, it will help us to make the right decision. And being careful will reduce the risk of trading somewhat. As a result we will be able to profit from trading. So trade carefully.
We are the ones that would be able to give the best advices to ourselves, because we know ourselves more than any other individuals, we know what we can take in and out. Before trading, I've already know how much I'm willing to lose and gain, my risk management do saved me from liquidation and trades hitting my stop loss. Trading is risky, we ought to take preventive measures whenever we're engaging in trading. We should apply the trading strategy that suits our pattern, rather than following the trends, price actions works.
Giving advice to ourselves is the worst idea you can do. We have our own hard headed way which affects our decision making. We have our own thoughts and experience that makes our own advice is very limited to our current status right now. There will be no improvement if the advice is coming from your own knowledge.
Asking professionals or read books from successful people on trading is the best thing to do for improvement of your trading rather than relying on your own knowledge.