The "Three Laws of Ineffective Operations in a Bull Market":
Even if you dare to enter the market, if your position is too light, the returns in a bull market will be difficult to reflect significantly.
Even if you have a heavy position, if you lack a firm determination to hold, the process of asset appreciation in a bull market cannot be fully experienced.
Even if you can hold for the long term, if you miss the right selling opportunity, profits in a bull market cannot be maximized.