Don't be afraid of your creditors - talk to them

Contact your creditors immediately if you’re having trouble making ends meet. Tell them why it’s difficult for you, and try to work out a modified payment plan that reduces your payments to a more manageable level. Don’t wait until your accounts have been turned over to a debt collector. At that point, your creditors have given up on you.
Dealing with Debt Collectors: The Fair Debt Collection Practices Act is the federal law that dictates how and when a debt collector may contact you. A debt collector may not call you before 8 a.m., after 9 p.m., or while you’re at work if the collector knows that your employer doesn’t approve of the calls. Collectors may not harass you, lie, or use unfair practices when they try to collect a debt. And they must honor a written request from you to stop further contact.

[From the FTc Publication "Knee Deep in Debt"]