I've been using RSI as part of my trading toolkit for years, and honestly, it's one of those indicators that separates traders who actually make money from those just chasing random signals. Here's what I've learned about this essential cheat sheet for reading market momentum.

First, let's get the basics straight. RSI scales from 0 to 100 and measures how fast price moves up versus down. Most traders know the textbook levels—above 70 signals overbought conditions, below 30 signals oversold. But knowing the number isn't the same as knowing what to do with it.

The real edge comes from understanding divergences. When price makes a lower low but RSI makes a higher low, that's your bullish divergence setup. I've caught some of my best entries this way, especially when I confirm on higher timeframes first to filter out the noise. The opposite holds true for bearish divergences—higher price high but lower RSI high. That's when I start looking for short opportunities, though I always wait for price to break support before pulling the trigger.

What most people miss is that RSI behaves completely differently depending on market structure. In a ranging market, I treat oversold as a genuine buy signal. But in a strong uptrend? That same oversold reading is just a dip-buying opportunity, not a reversal. The cheat sheet here is: context matters more than the indicator itself.

I also pay attention to RSI trendline breakouts. Draw a line across the RSI peaks or troughs, and when that breaks, you often get trend continuation or reversal. The key is pairing it with actual price action—candlestick patterns, volume spikes, support/resistance zones. RSI alone is just noise.

Then there's the swing failure pattern. When RSI crosses 30 but fails to break below it again, that's a strong bullish reversal signal. Same logic applies at the 70 level for bearish setups. I've found these work best when they align with key support or resistance on the chart.

One more thing: volume. Don't ignore it. RSI signals get way stronger when volume spikes during the breakout or reversal. It's the difference between a setup that actually works and one that fakes you out.

My honest take? RSI is powerful but only if you use it right. Combine it with moving averages for trend direction, MACD for momentum confirmation, or Fibonacci levels to align your entries. But the real cheat sheet is discipline—proper risk management and a clear plan beat indicator tweaking every single time. What's your experience been with RSI? Which setup has worked best for you?