It's very normal cause even 90% of living projects out there are garbage. Very few quality projects showed up in the last couple of years. And if you look into recent projects, most of them took DeFi hype's advantages, pumped after listing and then dumped to hell. That's how this market works. Put your money on BTC and you will have less concern.
Unfortunately, even the most-trusted altcoins are doing not well now. The crypto market picture looks a bit strange this autumn. If Bitcoin is mainly climbing up, other coins (with a few exceptions) are rolling lower and lower. I cannot find the reason for it.