please breathe and try to remain positive as far as you can try..you will surely do good in paper
humorousOil5
same thing happened with me during my last exams couldn't sleep , even after studying i thought i will get fail in paper and all negative thoughts flooded in . but i scored 86 out of 100 . even after giving exams i wasn't sure that I'm gonna pass the exams , came back home and cried and started overthinking and stuck in a loop of overthinking . but months later results came and securely scored good marks once i was thinking that I'm gonna get fail . so please stop overthinking I'm sure you too will get a good marks . since you are worried you must be prepared for exams but you aren't accepting the things .