You Go, Girl!!!!!
Yup, it's amazing, isn't it? Congratulations on going back to college at the ripe young age of 40!!! I did, too, and I just finished my second year of grad school--took me 3 years to get my BA and it will be 2 to get my Master's and it's been worth every minute. Don't look back--you are in control and, what's best, you're setting an awesome example for your child!