Job is worse, everything is worse

Financial horror show.  I have a major account that is simply not paying invoices period and my part time job is a royal bitch.  I have mentally surrendered that one, but it is not a financial winner by any means.  More stressful is the first problem about and there are thousands due in from this job and I cannot get it.  Money is soooooooooo tight it is not funny and I fear a 3:30 am wake up this morning due to stress again.  I have no idea what to do as I am doing everything I can.  Nothing works in this economy right now.