Purchasing a NOLO WC book for your state would be the first thing I'd do.

Do you have a WC attorney?

You need to learn your state WC laws and aggressively advocate for yourself, or you'll need to hire an attorney if you don't already have one. Be very, very careful with who you hire, if you go that route. At least in Cali, it's a problem replacing a bad one since both (the original and replacement attorneys) have to split the fee.

I'd do lots of research first and then interview at least 3.