You are roughly the size of my daughter (29), so to me you're certainly in the adult category. Since you are a beginner, the length is probably okay for one season (depending on how long your season is. Will you ski five days or forty?). But, not sure if a lightweight kids ski is right even for a beginner. I actually think the decreased control could interfere with your progression. FWIW, my daughter, an excellent skier, just got skis that are women's in a 169. So, I'd have thought you should be on like a 158.
Also, get the shop to check the binding set up for forward pressure and DIN. If they are kids skis, I'm sure they are set for a kid's weight as well.
I can't imagine these skis will meet your needs after one week of skiing, but maybe someone more knowledgeable about this particular model can chime in.