Matched but probably failing.

Idk I feel this feeling of throwing up each time I think about my stepn3 exam. I matched thank God but I’m scared failing step 3 is gonna be so hard and telling the program. I remember my day 1 was TERRIBLE. So much biostats and I suck at it! Day 2 was very vague! Easier but vague. But my biggest fear is that I messed up around 4-5 ccs. Can’t take my mind off of that. I’m not able to forget about this and not able to celebrate my match.