In October, making a long position of 4000 arrived at 4755 and earned a lot. I didn't know when to sell and got badly trapped by a black swan. I thought it would reach 5000, but it ended up just above 3000, then pulled back to 3650 and opened a short position. I couldn't fight it, so I had to join in. The entry points for each position were good, but I just don't understand when to sell. This time, let's discuss whether it will first reach 2150? Or will it break 4300 first?