1) Receive reviews: "This is ridiculous. Have they ACTUALLY READ my paper?! Reviewer 2 doesn't go as far in their criticism, so WHAT'S WRONG with reviewer 1?"
2) Later that night: "They are right. The paper is rubbish. My research is rubbish. I am rubbish. I'll never get anything published. I am just not made for academia..."
3) Speak to a good friend who's published a lot: "This is nonsense. They can't ask me to rewrite the entire paper in just two weeks. That's just completely unprofessional."
4) Think about it again: "It's all good. I have choices. I can decide what I want to do: revise and resubmit, only make some of the suggested changes, just submit the whole thing somewhere else."
5) Speak to supervisor, then editor of journal: "Aaaah, so THAT's what they mean. I don't actually HAVE to make all the changes, but can explain why I made some and not others. Reviewers are just humans, too ... who would have thought?!"