Most Helpful Guy
It's no different from a youth hostel, if you've stayed there traveling, just tell yourself you are on a really long trip. You get to know people well, but not that well.
Look at it as an opportunity to meet people in a sort of friendly environment, but with unwritten rules about letting people have their space and not hitting on them too much.
Most Helpful Girl
I live with 5 guys (and 2 girls) I don't think it's a problem, if you can live with hairy bathrooms
Tho if you're not comfortable it shouldn't be a big deal