Many people like to use the method of multiplying bets in contracts, for example, betting 10,000 to 20,000, then using 20,000 as the principal to open a position, and then betting to 40,000, using 40,000 as the principal to open a position... I never recommend playing this way. It's just like playing cards in a casino; many people mistakenly think that if they bet 1,000 and lose, they should bet 2,000, then if they lose 2,000, they should bet 4,000, and if they lose 4,000, they should bet 8,000. They believe that as long as they win once, they will recover their losses. This is wrong! Multiplying bets is based on an infinite supply of bullets to gamble against the dealer. No matter how much money you have, you cannot have enough capital to outlast the dealer. They can wipe you out on the N-th bet, and at that point, you are already at zero. Similarly, if you go from 10,000 to 20,000, then from 20,000 to 40,000, and at 40,000 you still use 40,000 as the principal to chase higher profits, then you could very likely get wiped out on the way to 80,000. The best way is to use a fixed principal to bet; regardless of how good the market is, the profits earned each day should be promptly put into financial management. When the profits double, you can slightly increase your position to engage with lighter exposure. Even if your original position gets wiped out in an unexpected situation, at least your principal will still be intact. Therefore, do not be too greedy to infinitely amplify your desires, unless you have infinite bullets offline.