Well, it does happen, but for that, you must know how to do good analysis. A year ago, I bought at 0.00000146 and it dropped almost to a price of 0.00000070 and even lower. I took advantage and bought at 0.00000095. And it went up to 0.00000160.
That's why you should take advantage of the dips and buy. It is easier to make money by holding and keeping the cryptos stored for a good time, only investing money when the cryptos are down, rather than doing trading. With trading, people tend to get impatient and make bad decisions.
