I third dave ramsey. Go to the library, get the Total Money Makeover and read it today.
If you are not bringing in enough $ to pay your bills each month, your options are to get rid of things (what are you driving, can you downsize temporarily?) or someone needs to get a second job. What you have to remember is that they little things add up. A small p/t job that brings in 200/month + cutting cable or something for 20/month plus downsizing a vehicle for 80/month can suddenly equal an extra $300 per month.
or selling stuff. yeah, something might only bring in $10-15 but if you sell 10 like that, your tax bill is paid. etc.
So read the book, create a budget and don't overlook the small stuff.