You can have a craving or thoughts about drinking. I know I think this way often, I'm an alcoholic. It's more about what you actually DO in my opinion... Sounds like you've got a plan and you came here today and posted about that plan so you're not going to drink! As they say, "play the record to the end" - it would be fun for a bit until it turned into a disaster. At least that's my experience. I DID occasionally have fun drinking at parties but then I woke up in strange places wondering what the hell happened the night before. Not so fun.
Good luck at your party you can still enjoy it and be sober. I believe in you.