(((deli)))
I'm with the others...take BOTH exams.
You've already laid it out...if you don't take both exams you will spend the summer depressed. That is *hardly* perfect. I really do understand the desire to do things well, but you are not in a situation where 'being perfect' is possible.
From what I see you have two choices:
A. Take both exams, pass, with neither exam having a perfect score. Summer of coming to terms with a new phase in your life.
B. Take one exam, without having a perfect score on that one. Summer of being depressed.
There is no option C -- that allows you to have a 'perfect' result.
Choose the option that has the 'better' result.
Good luck. Try to believe in yourself!