Why is it important to let the paper cool before proofreading? Why does familiarity with content pre

Why is it important to let the paper cool before proofreading?
Why does familiarity with content prevent you from spotting errors? How can you overcome it?
Why should you have someone else read the paper?
How can one be consistent when making corrections?
Why is the feedback you’ll receive on the First Draft important? How can you use it to improve
your paper?