Unless you have independent financial means (in which case you probably wouldn't be asking these questions) I suggest you borrow only enough money for a 4-year education in a non-aviation major. Graduate, get a job in your field, and start flight training on the side...pay as you go.

Evaluate your desire to fly (and live in poverty), pay attention to the state of the airline industry, and make the career decision after you have more money, experience, and knowledge of aviation.

I suspect you won't listen to me, but you'll probably wish you had 10-15 years from now.