I am having the opposite problem! I have always had short hair; every thing from the "Dorothy Hammel" through an asymmetrical look in the eighties! But this last year I have been growing it out and I am starting to dislike it.
Pixie hair is so low maintenance and cool in the humid summer. There are lots of styling options (contrary to many opinions). I have given myself until Christmas to grow hair then I am thinking of going back to my Pixie.
Do it! You will love it!