I have exams soon :(

This week I have an exam on Customer Service soon and I dont wanna do it at all, its not that I dont understand it, in fact, I'm pretty sure I'll memorize it in no time. Is just that nowadays I feel like I'm too scared to do exams since I'm scared of failing it.

I already have some close calls but Is just so frustating, I feel like I cant even get past an 8, idk what to do to get rid of this stress. Also (I already mentioned this before) but at the end of this month I have an exam of Marketing politics wich is mostly abou calculating cost and rent and I'm terrible at math so I'm also kinda worried about that too

If anyone has tips about what I could do, pls tell me.