The reasons for people's success in trading, if you want to know trading in general,

1. Price Action Reversal Signals
Price action provides some of the clearest visual clues. These include:

Candlestick Reversal Patterns
Certain candlestick patterns often mark the beginning of a trend shift, such as:

Hammer and inverted hammer
Bullish and bearish engulfing
Morning star and evening star
Doji-based reversals
These patterns reflect indecision or a sudden shift in momentum, making them useful for evaluating potential entry points.

Support and Resistance Break Reversal
When price breaks below support in an uptrend or above resistance in a downtrend, it may signal a reversal. Traders often wait for retests of these levels to avoid reacting to a false breakout.