The world is full of uncertainties, life is full of uncertainties, and investment is also full of uncertainties. They all share an uncertain commonality.

If you want to live a good life, you need to find things that can enhance your odds within the uncertainties: do not run red lights, do not race trains, avoid premature death, stay away from alluring members of the opposite sex, do not take drugs, do not contract incurable diseases, make more positive choices each day, and continue to accumulate this is the general direction for living a good life. If you want to get into a good university, you must study hard and surpass most of your classmates. If you want to marry a good wife, under certain conditions regarding your appearance and physique, you can only work hard to improve your capabilities, using your high income as one of the criteria for choosing a partner. Of course, without deliberately improving yourself, there is still a chance to live a good life and marry a good wife, but the probability will be much lower than that of those who put in the effort.

Contract trading is also a process of seeking certainty amidst uncertainty, trying to avoid single trades, not using full leverage, and preventing account depletion. Follow trends less, participate less in speculative trading, and do not stray from the essence of trading, so as to avoid developing a gambling habit.