It's not that you'll get cut because you have dirty nails. You'll get cut if that's the one thing that stood out about you!
Ladies, imho, just file your nail so that they're not jagged and throw on a coat of clear/clear glitter and leave it at that. But if you're like me, and start messing w/ your cuticles when your nervous,(ewww

) just get some gel overlays a week before rush. Then you nails will look FAB!
ps If you're
obsessing about your nails. Just about every other single thing we have mentioned is more important. Take a deep breath and RELAX!