speed up period?

i'm going to summer camp next week and I just realized i'm going to have my period start on the first day and last the whole time.

is there any way you can speed up a period so it can happen this week and I can get it out of the way?

if not, any tips??? it's gonna be hot and gross and sweaty and I won't get to use the bathroom very often and I have no idea what to do.