Sounds like you are off to a good start.
Serious slalom Skiing for sure is a great workout and fun. I'm just under 40 but the guys i ski w the most are 56 and 65ish.
Keep going till you fall apart.... Then get a brace or new parts and keep going again.
The only negative is you may get addicted and want to convert from the v drive boat to direct drive.... (A good thing). Especially after skiing at ski school.