Recently, I’ve noticed that quite a few beginners are asking how to use the RSI, so I’ve put together some of my own experiences.

Actually, the core idea of RSI (Relative Strength Index) is very simple: it uses numbers between 0 and 100 to gauge how strong the upward and downward momentum is over a given period. You can think of it as a thermometer for market sentiment—higher values mean stronger bullish momentum, while lower values indicate stronger bearish pressure.

The most straightforward way to use it is to look at overbought and oversold levels. When RSI goes above 70, the market may be overly optimistic, and a pullback could be around the corner; on the other hand, when RSI falls below 30, it suggests sentiment is extremely pessimistic, and a reversal may be near. But there’s a pitfall to avoid here: don’t assume that seeing “overbought” automatically means you should short. In a strong uptrend, RSI often stays above 70; if you blindly trade in the opposite direction, you’re likely to get trapped.

As for RSI settings—this is a part that many people easily overlook. The default RSI 14 is suitable for medium- to long-term swing trading and works well on the 4-hour chart and the daily chart. But if you’re a short-term trader, you can try RSI 6 instead, which makes the indicator more sensitive—once the price moves even a little, you can spot signals more clearly. Of course, the trade-off is that there will be more false signals, so you need to pair it with other tools to filter out noise. If you prefer long-term trading, RSI 24 will make the indicator more stable: fewer false signals, but also fewer opportunities to enter.

Another technique I use quite often is RSI divergence. Put simply, when the price makes a new high but RSI doesn’t follow with a new high, it’s a warning that upward momentum may already be weakening. Conversely, when the price makes a new low but RSI doesn’t break the previous low, it usually indicates that selling pressure is easing, and a rebound may be coming. On TradingView, you can directly enable the “Calculate Divergence” feature to automatically identify it, which is pretty convenient.

There’s also a technique of watching the RSI midline. When RSI crosses above 50 from below, it suggests the market may be shifting to a bullish bias; if it crosses below 50, be careful because a bearish move could be coming. Using RSI 24 to observe this tends to make it clearer.

That said, RSI isn’t a magic tool. My biggest lesson was that I once relied too heavily on RSI’s overbought signals to short during a strong market trend, and the result was really painful. What I learned afterward is that you must combine it with the time cycle—you can’t rush in just because the hourly chart shows an oversold signal; you also need to confirm that the overall direction on the daily chart is still fine. At the same time, pairing RSI with MACD, moving averages, or candlestick patterns is a more robust approach.

Finding the RSI parameters and trading strategy that suit you takes time and experimentation, but once you get the hang of it, this indicator really can help you judge more clearly whether the market is overreacting. The key is not to treat it like a holy grail—it’s only one tool in your trading toolbox.