All I know is that the price of the coin has gone up. It's not a good idea to buy it again, especially now, as many have already seen how much other altcoins have improved. Let's assume that the momentum of this coin is good, but still not lose that it has increased a lot.
Now it's even the opposite of what you said, because some good coins are also experiencing a decline even if not sharply, but creating or placing a buy order at a slightly lower price is a very good solution for anyone.