When you are sure, you should hold a large position. When you are somewhat sure, you should hold a half position/light position. When you are not sure, you should hold an empty position and wait for certainty to come before entering the market.
Always being in a state of all-in, thinking of getting rich overnight, is meaningless except affecting your mentality. The more anxious you are, the more money you lose. This is a law. It is almost impossible to lose a lot without greed and FOMO.
At the beginning, everyone wanted to be the chosen one, but in the end, they all became cannon fodder.