What should I do if I change my new job and speak ill of the new leader, who thinks that the new leader has a bad impression on me, looks down on me and is depressed?

Don't give yourself too much psychological burden. People who can be leaders are generally open-minded and don't care about employees' mistakes, and leaders also have their own ability to distinguish. You can change your leader's impression of you through hard work, and then you should pay attention to what you say in front of the leader in the future. Don't think that the leader looks down on you. If a leader has no tolerance, it is difficult for the company to grow, and you don't need to follow such a leader, because it will be very tired. I am always worried that I will make mistakes, and it is difficult to get the appreciation of the leaders. Let nature take its course and pay attention to it later.