The future market is unpredictable, and the only thing we can rely on is the rules - consistent trading rules that allow you to stand on the side of probability in this game of chance.
Profit is not achieved by predicting market trends but by relying on 'minimizing losses when wrong and maximizing gains when right'; this is the biggest difference between practitioners and analysts.
The purpose of buying is not to lose money but to gain profit and to gain as much as possible. When the trend is in your favor, be greedy and let the profits run; when the trend is against you, stop fantasizing and cut your losses.
When is the market direction clear? It is never clear! The market at any time is a gamble with your own chips, even though many friends never consider themselves to be gambling, only believing in the high probability, which does not count as gambling. In fact, no one knows how tomorrow will unfold; trading is placing a bet, wagering a certain cost for uncertain profits, but when the risk is controllable, the future is worth a bet.