I will like to keep this simple and short, you want to invest in DeFi projects? Yea they are the best presently in terms of fast growth and adoption but watch out for new DeFi projects because they are probably scam, you want DeFi project? Look into those that's been around since 2018 or max 2019, not all newly launched DeFi projects starts development in 2020, DYOR and Play Safe.
indeed, sometimes Old is gold
so, an old defi project is more promissing than a new defi project
because the old defi project come before the hype on defi show up, and dyor is the best way to minimize the risk on crypto investments