Jen - Give it at least 6 weeks. SOmetimes it takes a little while. For me , I went about 3 months with only seein gsmall changes and the ... BAM...I lost like 12 " inches in one month. Two weeks is just nt that much time yet. You'll get there!
By the way - 20 is not OLD or Boring! Enjoy it! I think I might have stayed at 22 forever if I could have, but I couldn't. I still act like I'm 8 at WDW, though!
Sorry, I usually don't have a car at WDW, so I have no idea about a Curves. Their website should have locations, though.