all of these people tellin u that short skis are unacceptable are completely wrong. short skis perform just as well as the respective long ski in nearly every terrain. yes, they will be less stable and yes they will sink easier in the pow, but other than that, a short ski is much more prefferable ie they are much easier to manuver when u get in a jam and they can be thrown around a lot easier in the park. unless u can upgrade for less than ~$100, i would say just stick with the skis u already bought and love.
but one other thing....how short r those skis if ur only five feet tall? if ur really that short, and small, u probably dont need to worry about the performance difference in size ne way.