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You would have no other alternative than to sell when the market is bearish and that means you have lost your money for good. So, the bearish trend can affect some people negatively. It is only good when you invest more than you can afford to risk and if the market starts becoming bearish you can then have enough money to also buy more coins.
Selling when it is bearish is an inappropriate action if you do not have any preparation.
So this is where the need to do capital management before investing. Capital management will regulate how you buy a coin with a certain amount according to the specified strategy, if the market continues to fall then there will be spare money that can be used. This will certainly maintain the investment capital. Whatever you have, if there is no good management, everything will end in losses.