These days, watching $AAVE, $LDO, $HYPE, and $UNI drop so sharply, I really feel uncomfortable inside.

Calming down and thinking about it, it's actually not surprising. The entire market is weak right now. When Bitcoin drops, all the altcoins, including these established DeFi projects, follow suit and plunge.
Plus, a few projects have their own issues. For example, AAVE recently experienced a liquidation incident, and the core development team even left. The community is divided, so market confidence is definitely affected. LDO and UNI are the same; the total value locked (TVL) in DeFi has been shrinking, no new funds are coming in, only selling pressure. Projects like HYPE, though newer, can't withstand the overall panic either.
Even the strongest projects are fragile in a bear market and during panic. Don't overly believe in the idea that "the leader never dies." When the market is bad, preserving your principal is more important than anything else. Use less leverage, avoid reckless holding, and if emotions are off, withdraw first—this is more important than anything.