You chat with your coworkers. People compliment your work. You might miss a few things, but you’re doing such a good job that they forgive you for it. People help you when you can’t do something.
For a while, you’re golden.
Then it gets harder.
As the work piles on, you start making mistakes. You lose something. You send a poorly-worded email. You realize that everyone is working faster than you are.
The multitasking is killing you. You ask your supervisor for help. You’ve been asking her that a lot by the way.
You start calling in sick. You need to sleep. You might even fall asleep at work. When people aren’t avoiding you, they look vaguely concerned about you. You look sick.
You say the wrong thing to a very wrong person.
Or maybe it’s just a ton of little mistakes that just keep adding up.
You might quit due to exhaustion. A lot of us work for a while and then not, going through phases of high hopes and then complete fucking burnout.