I'm in the same situation right now. I'm at a party I couldn't get out of. Lots of coming and reading on here when I can. I brought my own smoothies and so far things are going ok.
I'm also only on day 5 so I wouldn't of come if I had a choice.
You can do it. Take time out when you can. Lots of fresh air. Keep reminding yourself why you wanted to stop and that one will never just be one.
We both can get through it and wake up feeling proud and fresh and not guilty and rough.