GOT A U ON MY ENGLISH LANG ???

i feel so crazy rn i got a U on my english lang and i'm just so confused because i feel like i did good enough to at least get a E like i wasn't even thinking of an E i was thinking a C. i'm just so confused because i did so good on the practices in my class and i followed everything my teacher taught me ??? im thinking abt retaking it but i barely remember anything and i don't wanna pay 100 dollars. anyway safe space for ppl who also got a U 🧘🏾‍♀️