You definitely can do some things to help your confidence in 2 weeks time! There are lots of exercises you can do in your home/apartment to focus on strength training/toning. You may not see all the results you want, but if you combine it with a solid, nutritious food regimen, you definitely will feel better!
Check this website out for starters - maybe you'll find a few moves that seem inspiring. String a few together to create your own at-home workout and just be consistent! Results will follow.
http://www.shape.com/fitness
Good luck to you & congrats on your weight loss thus far.