The calm before the storm?

I am performing every night next week in an operetta by Gilbert and Sullivan; The Mikado.
I am really looking forward to getting on stage and performing it for real, especially as I have got a little fed up of rehearsals!! I know it will wear me out and I will be exhausted all week, but I reckon I'll be running on adrenaline so it will be ok. Plus it's the end of term after that so I can go collapse in a ball at home afterwards.
But right now, I don't exactly know what to do with myself. I've done all the work that's due in next week and the rest of the stuff which is for after Easter seems to be beyond my brain power at the moment. I'm sure there are many things I need to buy/do before I start performing on monday, but I have forgoten them currently. I'm tired but dont think bed is a good idea as then I'll never sleep tonight. Most of my housemates are hard at work on essays etc. so I shouldn't disturb them.

So all in all I feel like I'm in some sort of limbo, biding my time waiting for it all to kick off tomorrow afternoon with the dress rehearsal, but not really knowing how to prepare myself for it all!!!
Any suggestions gratefully received.
Thanks