honestly if your feeling rough about exams please read this I hope it will take a bit of weight off your shoulders.
over the exam season, I haven't felt that my exams have gone too great. ive come out of most exams thinking well I could've done better and to be honest think I did better in my mocks and I'm sure people can relate. honestly just remember there is nothing you can do about exams that have already happened, what's done is done and there is no point in stressing yourself about it.
also, everyone always remembers what they did wrong, but forget all the questions they answered well! i know alot of people that panicked that they answered whatever question badly, but is completely disregarding that they aced another question.
I'm not very academic, I get 4s and 5s and the occasional 6. Its not that I don't try (although I could try harder) but I genuinely just cant recall information very well, and to be honest, a lot about exams is just memorising information rather than actually knowing the content.
it will be fine and I hope your exams have gone okay!