Every transaction needs to be planned in advance.

After opening a position, do not clear the position at once because it has risen too much; do not fill the position in one day because it has fallen too much.

Do not always expect to sell the full position at the highest point and buy at the lowest point. We have to take some elevators.

There will always be a mistake in the full position operation, because not all rising and selling will give you the opportunity to buy back, and not all falling buys can rebound.