It is most appropriate for funds to start to build positions in the stock market, but it will be more effective for more than two years. The types of fixed investment of funds are suitable for funds with large fluctuations (determined by their attributes), mainly including index funds or small and medium-sized stock funds.
Now you only have one fund suitable for fixed investment (the second is only exponential). Since the others are not suitable for fixed investment, but now they are all losing money, you must stop the fixed investment of the two funds and maintain the fixed investment of the intermediate Bosera fund.
In view of the current low volatility of the stock market, there is little room for decline, but there is no time to rise. If you have the courage, sell other funds and invest all your money in Bosera Fund, and then temporarily hold it until the original fund is stable. But you can transfer all the money from the other two fixed investments to the fixed investment Bosera Fund. In this way, your future income will definitely be better than now.