Why is it so difficult for most retail investors to trade?

They go back and forth when the market fluctuates, buy and sell frequently, and sell at a loss

They can't hold on when the market starts to go sideways, and they have to sell when the market falls back slightly

They increase their positions at high levels because of fomo, and they say they want to have a pattern

They are deeply trapped and don't know how to stop loss, so they just keep holding

They have no trading logic and trading system, and they speculate on cryptocurrencies based on news, and they don't know why they make money or lose money