@snowsurfgirl
Chillax, girlfriend.
I went through MANY of the same anxieties this time last season as well. It all ended up working out fine. I was really nervous about getting hired because I didn't think I had the ski skills. Even during our instructor training course, I was definitely the least experienced/skilled skier. I had been skiing for three seasons at that point and everyone else is my group was 10-15 years younger than me and had been skiing since they could walk. And I still go hired. I was told several times, "we can teach you how to ski, but we can't teach you how to be a good teacher or have the right personality to teach."
As for wanting to "just ski"... I had ended my previous season on high note too. The training you'll get as an instructor though will take you through the roof. You'll enjoy "just skiing" so much more because you'll actually be getting good at it. I went from never having done a double black diamond before to doing our double black diamond down the front face as my "warm-up" run before teaching started- within one season. There was no way I would have accomplished that without all the skills I learned and practiced as we worked on various instructor clinics throughout the season.
So just go with it. Try it out this year. If you really don't enjoy it, you don't have to come back and teach the next season if it really didn't work for you. But you will have the skills and tools to be a better skier so you can really enjoy the heck out of the following season and "just ski" even if you choose not to teach again. My point is, you have nothing to lose by going for it this year, and everything to gain.