First, this method is not feasible. Even a master can't guarantee the success of every transaction. I see that your above methods are basically operated from a higher position. There is a certain risk in this operation mode, that is, the risk is basically over-concentrated.

Second, it is difficult to grasp the low price every day. Even if the stock falls that day, it is difficult to guarantee that the stock will not continue to fall tomorrow.

Third, if you don't let yourself see the market, something will happen. If there was a sudden plunge that day, although the purchase price you set was already relatively low, the actual stock fell more than you expected, and actually fell by several percentage points. At that time, you will not be willing to accept this situation.