That is great that she did so well her first time out. Will you be showing her at AKC shows. The Lake Charles and Beaumont shows will be close for you.
Have you been to an dog show before? It always helps to attend one. Here is a link with some dog show videos on it. You can click on the preview and watch a good bit of the video without ordering it. I think it is a good learning tool watching the professionals at work. It takes a few minutes for the video to start once you click on preview.
National Show Dog Video Professionals
How long will you be going to classes? The more you can get her out to different places the better she will do. It is normal for them to be scared at first. Be sure to keep us posted on how she is doing.