Notice that when the candles form a large stick on top (basically the candle is pointing downwards), then we have a few candles of resistance or pullback. In this example it isn't so obvious, because this coin right now is in a very strong run, but you get the idea.
After the first candle closes and give you the signal, you can sell at the following candle and then expect a retrace.
Let's look at a clearer example:
Then you use the support level to buy back. This is called a swing trade, this can make you lots of money. But if you get it wrong and go on panic, you can lose a lot as well.
Additional tip: The indicator "TD Sequential", which puts the numbers on the candles is another HUGE indication of a coming retrace. On the same chart above, you can see that the #9 produced the biggest fall.
If you want to take this to MASTER level, learn how to read candles.