Wow… “taking out (your) frustrations on her via email” has magically transformed into “a healthy email.”
And Merry Christmas, and a very Happy New Year right back to you.
I understand that you want good grades. I understand that you would like school to be less stressful.
And I would like to be 20 pounds lighter. But if I don’t make it happen, it’s not going to.
But here’s the thing: your professor isn’t Santa Claus. It’s not his job to look at your wish list and make your wishes come true.
It’s his job to grade your paper based on how well you exhibit knowledge of the material. By your own admission, you make lots of mistakes. So it would be wrong of him to give you an A, when those mistakes clearly indicate a lack of understanding of the material.