I can relate to this SO MUCH. Nights before, days before events or social outings I'm meant to attend I freak out and think I'm going to look too bloated or fat, too pale, hair not done etc etc.

And then it goes to thinking about the people you'll see, meet.. what to talk to with them. If they'll ask you questions. Lol I'm not really much use here, but I hear ya. I hope it all goes well