Soooo true, but hopefully you love your work. I started a business in 2002 and basically didn't make any money for 2 years whilst having two sons in college and all the other house+family bills to pay. The financial bloodletting was enormous. It's turned out well, but the lesson is that almost everybody will survive hardship and uncertainty just fine and be better for the experience. Another lesson is that when you're making money, save as much as you can.