If you are in AA find a meeting, let folks in the program know you WILL be calling them and stick to it..... CALL, call some body just as the drinking starts and then call others when ever you feel a bit edgy.
One very important thing.................. Make sure you have an out, that you have total control over. Do not ride with some one else, make sure if you need to leave you can and not be dependent on some one else.
There is nothing wrong with going to bed early either.
I bet you will be surprised to see that others go to bed early as well. I assume there will be kids there, why not arrange a card game or something like that with them?