What many people fear most when investing is not losing money, but 'missing out' on the market rally, watching the market rise while they themselves are not fully invested (or even leveraged). However, I believe that investing does not require you to track how many points the index has risen every day or whether you have outperformed the index today.
What you should really focus on is whether your capital is placed in a system that can continuously generate cash flow. This system could be blue-chip stocks that steadily pay dividends, a long-term excellent industry or company, a recession-resistant and robust strategy like that of a property insurance company, or a long-short strategy based on volatility. Regardless of the form, the key is: it must operate long-term, be reliable, and not depend on getting the direction right just once or twice.
Investing is not a sprint; it is a marathon. There are always opportunities in the market, but human energy and emotions are limited. Watching the market too closely and frequently entering and exiting can make you more susceptible to emotional influences, leading to irrational decisions.
Sometimes when the market goes up, it feels painful to see that you 'missed out', but don't forget, you did not enter the market just to catch every wave. You entered to establish a system that helps you navigate through cycles and consistently generate cash flow or returns. As long as this system is still operational, there is no need to be held hostage by short-term fluctuations.
Do not treat the market's random fluctuations as the endpoint.