Experience is the most valuable knowledge in Cryptocurrency trading, the longer we engage in this trading, the more knowledge we will gain. Of course, we will also find it easier to read the graph of the ups and downs of Crypto prices. 
I remind you when we are trading crypto, we should not be greedy in taking profits. Sell ​​your coins when you have made a profit even though the amount is not large, don't panic when the price drops and we have to be patient waiting for the price to go up.