It's not easy, but if you work hard you can at the very least keep your debt reasonable.
(It is probably also worth mentioning that your debt was more than double the median student loan debt of people leaving college: ~$30k: http://www.huffingtonpost.com/2013/07/10/student-loan-debt-m... Your school (and mine) was far more expensive than was necessary.)
I tried (not the raising the girls bit), with a full time job and going to school full time and my grades plummeted for that semester (which caused me to have to retake a couple classes and delayed my graduation a semester).
Even in a Mid-Missouri small town, making 7-8 bucks an hour working ~24 hours a week, it wasn't enough to survive, let alone survive AND pay "cash" for classes and books.
What you really want to avoid is taking on student loans, then dropping out. If you do that then you'll be left with little but debt to show for it. If you instead try to work your way through school, but still drop out, at least you won't be in debt. Dropping out is far less damaging if you don't take on student loans, which is why I made student loans my backup plan.
So unless you were a very top performer in your class, it was unlikely that you got into a state university. Instead, people got into for-profit universities they heard through internet ads or TV ads. (There is _always_ a spot for you in a for-profit university). For-profit universities were a bad deal, they manipulated their students and lied to them about their accreditation status. The problem didn't become known until maybe 2012 or so when the Obama Administration began to crack down on their shady practices.
The fact of the matter is, State Universities are the way to go, although they weren't an option for many people. Today, the average cost of an in-state university is $9000 / year. (This falls in line with my experience)
Even with books and stuff, that will only be ~$45k in loans for the average in-state university.
As the Echo Boomers leave college age, the college-age population is beginning to shrink again and it will be easier to get a degree now without resorting to overpriced out-of-state costs or for-profit schools.
I think besides where you go to school mattering for tuition, people forget about housing. Where I went to school students today pay ~$300/mo per head for sharing an apartment or house. Welcome to the upper midwest, obviously we can all think of places where housing is far more expensive.