Yesterday, after analyzing $ETH , it turned out just as I expected, the upward momentum was weak, and it broke below the small support level, then it fell down.
I was thinking of placing a buy order at the level of 2450 as I mentioned, the orders were all set, but I didn't get in. When I checked at 23:00, it had already come back up, so I directly chased a buy at the market price of 2550, with a stop loss at 2500. The drop in the early morning did not break through, so I also made a profit.
The order at 2450 can still be placed as a pending order.