Nerve Damage

I am looking for answers on nerve damage. In 2018 I was in a car crash and worked for 3 years till I couldn't keep up mentally and physically. It sits right in my upper neck and causes the pain to move from my neck to my arms and down to the legs. Some times I can't even feel the muscle but just the bone weight it weighs down and causes me to become emotional and physical exhausted. I just don't know how to cope or what I can do for work when this makes me physically sick itd hard to get up most mornings