It affects credit, no doubt.
Cooter is right, You can keep these guys off your back a little if you pay them a little. Just $5 - $10 a month. My brother was in for 50K and did that. He found some ways to get it paid by government programs and charity drives.
If you have no income, how do you live? Dude, get up and do something, anything, even if it's wrong.
If people from other countries can come to the US and make millions in a few years, you have no excuse. If you are healty and breathing you can get up do the same.
I wish you the best!