Seconding Franc's and Jason's comments. No need to rush into anything that would scare you. I remember my first excursion into the Dragon and I was very worried. However, after driving it myself numerous times, I feel very comfortable with driving through the Dragon and the other routes. You will certainly learn how well your car will handle through the twisties and will make you a better driver.
For those of you who haven't already heard, by next Monday I expect to have a new-to-me vehicle. It's still an XF and that's all I'm going to say right now.