regrets?!

I'm about to start school for cosmetology in the fall. It's what I've wanted to do since I was 11 years old. It's the only thing I thought I could do besides being a mom. But now that I'm nearly enrolled, I can't help but think that there's something else. Is it just self doubt? Is there really something else I should be looking into? I was never an academically advanced student, I got by alright and excelled in certain subjects that didn't bore me, but I really wanted a career path that would allow me to raise children and still have a career. And also something that didn't require a lot of schooling. And with my love of all things beauty and fascination for colored hair extensions and makeup and self expression..the whole 9 yards it made perfect sense. Am I just getting cold feet?