Damn, Bitcoin is also a currency whose price is manipulated by trustees.

Sell all altcoins and buy BTC. There are endless altcoins on exchanges, and they never run out of supply. Buying altcoins is a dead end. After so many years of trading, you should have some insights. There are altcoins that experience explosive growth, but it will never be your turn. The exchanges are clearly monitoring what coins those accounts hold. Coins with a large number of holders will naturally not rise. Only Bitcoin is not controlled by the exchanges in terms of price.