YFI has always been a bubble,it reached its peak of about $41k thats was almost equivalent to about 4 bitcoin at that time, but now it's  $17k and still dumping fast, I won't advice anyone to even invest in it  cus it's really volatile, besides there's no more hype around it, maybe that's why its has been dumping, YFI was just an overvalued project, I always knew it won't take long for the bubble to burst,so just avoid it for your own safety.