You should not be jumping on to each and every new project but whenever there is some new trend everyone seems to start chasing them without checking the details of the project. Even now there are many high quality projects in the field of defi that are worth investing in.
Jumping into a new project without checking first is a very wrong thing, because now there are many failed projects and most of them all use the trending name, namely DeFi, so be wise in looking at a project and don't rush to believe in them.