This is an example of personification. Does this help?
Figure of speech
its a saying actually "that was just a figure of speech"
It has to do with something about your brain, but I think its because people are afraid they did something wrong or mess up when they are speaking. It just reacts to your feelings. If you had practiced a lot, you probably won't be nervous, you will be confident.
Answer:
Im confused. what exactly is it that i have to do
Explanation: