Trust me, nothings better than a glass of ice cold water
If that disappoints you, you can try sparkling water with flavouring, or lemon squash, iced tea, chinotto...
there's a world of non alcoholic thirst quenchers out there, any of them more effective than beer
If you're 'but'-ing and still want beer, then you have an AV problem, and there's some great suggestions up-thread
I never recommend holidays so soon, but whats done is done.
you can do this Toffee
D