Just don't think 40,000, think 350 400 dollars a month. That's what your loan repayment will be on that amount. If you're lucky you can get your parents to pay it for you. I'm unlucky in this department, my dad does live within an hour of my school though. So I live with him and get to save a few hundred dollars a month. There's a loan payment right there. Just start looking around at what you spend money on in a given month. Figure out how to save a few bucks. Get a roomate, move to a cheaper apt, move in with a family member etc etc. I'm not sure how you would do it with a family. So if you have one of those I would suggest abandoning them. Perhaps you could pull the I'm going out for a gallon of milk routine, just drive to an airport and never come back. These are all practical suggestions.(sarcasm)
Seriously though, I honestly don't know how much the rest of the world makes. How much lower is the starting salary at a regional as compared to other college level four year jobs? I'd guess maybe 10,000 less. Not a ton in the grand scheme of things. Most careers that are lucrative/hard to get into have this sort of pay scale. My girlfriend is currently in her last year of her PHD for psychology. She came out of the University of Michigan with decent grades and a four year degree and took a job making 18,000 a year. Did that for a year and a half or so, the whole point was to get a letter or recomendation to get into grad school, which it did. Right now my sister is working for americorp and lives off of food stamps with a four year degree from a decent school, also with grad school in mind.
My Dad went from flying F-14s at a very livable wage, to uncertainty and at least a 50% pay reduction in a recently deregulated airline industry. He made 600 bucks a month his first year at SWA, we could have qualified for food stamps. Now he makes 200,000+ a year. I'm not sure if any of us will ever see that kind of pay. We probably won't have the foresight or luck to get on with a company like Southwest at the begining of their run. However, he seems to think a lot of us will. Or as he says you'll probably break 100,000 which isn't too shabby in the rest of the countries eyes.
I know this post is long winded. I have the same fears as you do, but sometimes I have to write something like this to get me back on track. The airline industry sucks right now, but it has to turn around eventually. The pay may not be as high as it was in the past. However, I'm sure you'll be making as much as your peers in other industries. While only working 3 days a week.