The leadership is incompetent, evil, and fake. These terrible people live in a bubble, which is far, far away from reality. They set insane expectations and expect employees to handle brutal stress. They are never there when you need help. But they are always there when you mess up, and they want to humiliate you.
The attitude of my colleagues wasn't good either. These arrogant people never showed up when I needed help, but expected me to handle a ton of work for them. I refused, and they plotted against me to kick me out. It was insane.
The clients are the worst. They are entitled people who think that you are a puppet who will dance their tune. You really have no support from your colleagues or the leadership, so they exploit that weakness.