You've been studying this for three months.
Not only have you been studying this, you've been learning, stretching your brain, accepting new ideas, and proving the ones you don't believe.
You've done assignment after assignment and wrote two midterms.
You've done this a million times.
You've taken notes and one problems.
You've slept and ate breakfast.
Now there's only one thing left to do.
And that is to go ace this exam.