Saying that is very easy but how can you do it??
ICO hype lasted for around a year and I think that will also happen to the DeFi hype.

There will be a time that this hype will over as all of the hypes always have an ending. Just wait for it to be over and don't invest into it as of this moment. On the other hand, there are some DeFi projects that are still profitable at this time and they are a real business with real products and ChainLink is one of them .