I hate surprises

I have always hated surprises. I have this need to know exactly what is going on at all times. In the words of my father, "what's the plan?" D's taking me somewhere for dinner tonight to celebrate my birthday. He won't tell me where. All I know is that its somewhere I've never been and he hasn't been in a couple of years. And that I have to dress up. There are so many restaurants in this town that I couldn't even try to guess. I don't have a clue what to wear. I don't have that many nice clothes. D. said to wear a skirt but I only own short skirts and its a little too cold out for a short skirt. We're going with our friend R. and this girl he's been on one date with. So I'm not only worrying that I won't be dressed properly for this restaurant, but I'm worried how I'll look to this other girl. I know it shouldn't matter, but I want this to work out for R. and I don't want her to wonder what kind of friends he has. Plus, I'm shy around new people. In the back of my head, I know I'm going to have fun tonight but its not helping me stop worrying. I'll let you know about tonight later.