For altcoins, buy low and sell high, and you will make a profit. Although this statement is correct, it does not go for all coins. Some people think that when the market rebounds, their altcoins will rise with it. But the result was leaving the market at a loss.
So choose wisely and follow up the project. See what their developers are doing, or just hiding behind the prevailing saying.
Actually it must also be targeted very well because everyone who buys must also determine the price, as well as when you want to resell, there must also be a price determination because that is what can make it profitable even though when it goes up and when it goes down it's very difficult to know