Please immediately call your doctor or go to the emergency room and tell them of your suicidal thoughts. You need to do this RIGHT NOW. All the rest can wait, you have a lot of time to exercise your rights in this matter. You ARE going to get through this. I've been injured and in and out of worker's comp for five years now. Yes, it seems overwhelming at times, and it's easy to get depressed and start going downhill quickly - but there are people who will help you get through this.
Your entitlement to worker's comp benefits do not end because you had a two hour a day work release or because you were fired. You do need to see a lawyer at this point though to protect and take full advantage of your rights.
But first, go get some medical help with your depression or at least post back here. I'll be back on here later this evening after a doctors appointment if you need someone to talk to - now go call your doctor