Are you using an attorney? I was in 3 fairly bad car wrecks within less than 10 years time. My friend who owned a physical rehab center at the time of the first accident recommended that I go thru a lawyer and I will always recommend that to anybody. That first accident was a 5 car pile up with me taking the brunt of it. There was talk of the insurance company only having so much to go around but the lawyer was able to help me get what I needed since my car was totaled and I required chiropractic care. The next accident, the guy tried to flee the scene, was able to speak English only when convenient, and had such high risk insurance that even my chiropractor's office manager never heard of it. And the last one, the lady that hit me started lying that it wasn't her fault. That last one I only had 150 miles on my car.
In all cases, lawyers took better care of me than I could've myself. It was also nice to be able to focus on healing and not have to worry about all that.