Freaking about my English exam

English is not my native language, which you can clearly see it in my BIO, and that's why it freaks me out so much. I've been told by my family and friends that "everything will be fine" or "why are you so stressed?" which I don't know why, makes me feel even worse. If I don't get grade higher then 2, I'll have to repeat the exam after summer break, which SUCKS.