Overall tips: For contract orders, from the strategy entry into the initial position to increasing the position with unrealized gains and rolling over, while defending and taking profit, these aspects cannot be followed up with detailed operations. It's important to experience it yourself. For example, I also increase my position for some of my orders, and I will distribute across multiple accounts to create different strategies. Some focus on short-term trades, while others attempt to hold medium to long term positions to compensate for missed gains in short-term accounts. Timely taking profits in short-term accounts also compensates for the profit pullback situation caused by medium to long term strategies. Contracts are considered comprehensively; there is no way to precisely manage medium to long term and short-term trades with just one account. You can't have it both ways.