system
anxious: I have a huge test tomorrow and I am so nervous. I don't feel ready for it.
gpt
I have a huge test tomorrow in Physics and I don't feel prepared for it.
human
Get to studying! I'm sure if you get in a few mores hours you will feel more confident! 
gpt
You're right! But no matter how much studying I may do, I know it's going to be a tough one.
human
Hard work always pays off!