First, amplify your mistakes. A person can't be without fault in the workplace. Once the leader always catches your mistakes and you can't explain them, they won't listen, which proves that the leader doesn't trust you, or he doesn't want to trust you. Then no matter what you do, he can magnify you ten times because of a small mistake, so you don't need to follow him.
The second is the attitude towards you. In fact, it is obvious from the tone of voice whether a leader wants to reuse you. Sometimes the boss talks to you, although he only says a very simple meaning, but he is actually implying persuasion. For example, many pregnant female employees may have this experience, but this kind of leadership behavior is extremely bad. Everyone can safeguard their rights through legal means.
Third, it is obvious that new employees are reused and you are ignored. It stands to reason that new employees don't know anything and need to be brought by old employees who have been employed for a long time. But if the boss lets her do everything and puts you on the shelf, his meaning will be obvious. Even if the new employee is not reused in the future, he will not reuse you. Faced with such treatment, it is better to leave directly and find a new world that is more suitable for him.