wasted education?

I have a Diploma in Film&TV from LimKokWing University College of Creative Technology. I spent 3 years there and passed my tertiary education with flying colours, even achieving an award for Best in Screenwriting. My dad probably spent about RM18K including my books and allowance. So what happened to my oh so wonderful education and super-proud award? They're left somewhere at the back of my brain and closet respectively. I used to think that I owe my dad big time for forking out so much on my education only to have me end up marrying my long term boyfriend. Don't get me wrong, I'm not regretting my decision to settle down. I couldn't ask for a better life really. And to be blessed with an adorable son, who would?
My point is, what if I made use of my diploma and have a chance at working in a broadcasting firm and having a career? What if I pursued my education and spend another 2 years getting a Degree? I know being married to Amer wouldn't hold me back but as soon as I settled down, I became comfortable teaching English to primary students and earning a decent amount of money for myself. (My money is my money and Amer's money is OUR money, mind you ;) )
Ok, back to the part where I used to think I owe my dad big time. I recently read a post in my Yahoo! Group known as SAHP (Stay at home parents) and I came across this profound saying,
The more education you have, the better equipped you are at bringing up a child into this world. Education offers you a thinking platform & it doesn't matter what you studied or where. As long as you have been exposed to an education, you think better & thus are able to nurture your child in a more wholesome manner. Never ever think that your education is wasted.
Such strong words don't you think? Nonetheless, I've never regretted having a child at this young age and becoming a mother takes more of you than you can imagine. With those words, I shall stop feeling sorry for my dad and think that I still owe him big time, in turn, I thank him for my education and his blessings over my decision to settle down..