Good day everyone... I don't even know how to get rid of these stupid …

Good day everyone... I don't even know how to get rid of these stupid thoughts anymore... There's a scheduled surgery coming up, but my head is full of bad thoughts, what if I feel everything, what if there's another bleeding, what if I die God forbid... The first one was emergency, after contractions under anesthesia I didn't care anymore, 2.5 hours passed like 5 minutes on the operating table... I would like it all to happen before the planned surgery, so there's no time to think about anything... I don't know how to deal with these thoughts...