Since trading has the same source of profit and loss, how can we make a profit?

Profit and loss from the same source does not mean that profit and loss are of the same value, nor does it mean that from other aspects, the same source may produce more profit and less loss. In other words, profit and loss from the same source means that after an order is placed, there is a possibility of profit or loss. If you want to avoid losses completely, you will avoid profits.

The focus here is that profits come at a price and are obtained by taking risks. So profit and loss from the same source does not mean that profit and loss are of the same value or other aspects. So what we need to do is to maximize the profit end and minimize the loss end.