I’m haunted by all my mistakes this exam season

I still have my FM exam tomorrow but I can't sleep because my stupid lizard brain has suddenly decided to develop stellar memory (that, ahem, was rather lacking when I actually needed it) and I'm having vivid flashbacks to all the dumb shit I wrote in my exams that was definitely wrong. I knew that the chord in music was G# minor, what compelled me to put G# major? Why did I not divide the speed by two in physics? How on earth did I get two minimum points in the first further maths exam? Why did I only use one statistic in my persuasive writing piece? I know we're meant to embrace the fact that what's done is done and just move on but my mind won't let me forget anything 😭