If we would follow the investment quote that goes to say Only invest what you could afford to lose then the battle would only be psychologically we wouldn't be bother financially.
If we are only investing our excess money then we would be bothered by the price we would hold it no matter what happen unless it already reach the price that we are aiming to or we already gain the profit that we are looking for.
Exactly but most people won't adhere to it, even though they are aware of it but yet, they will still want to start investing with a big amount of money, even when they don't have such amount, they can take a loan for it just to do what they want.
Which is bad because if the market doesn't go as they planned, it might both affect them financially and psychologically, which can lead them to losses if the market dips below their capital.
That is why people should not neglect to follow the instructions of investment, especially if it involves crypto so that they will not do anything that will affect their plans.