Just is a rule that I imposed on myself: not to buy coins in their early days because the novelty raises them, and it is in the following periods that their true development can be appreciated.

Do not buy new or recently listed cryptocurrencies on exchanges upon their listing, as the time of their listing on centralized platforms is the time for investors (who obtained the currency through the initial coin offering or bought it from decentralized exchanges) to sell and take profits. Therefore, the price drops upon listing due to this selling.
So, you should wait until you see the true price of the currency, and then you can trade after ensuring its legitimacy, studying its project, and analyzing it.