do i deserve more?

Hi,
I had an RTA more than 3yrs ago. I  am suffering with permanent symptoms and suffer with severe pain in my neck and right arm. Although i was not working at the time of the accident,but this has affected my potential career which involves using my right arm. I am at this point getting an offer close to what my Solicitor had filed for, which I now think is not adequate. Can i  hope to receive more if i go to court? i have recently been to see the defendent's medical expert,but have been told that his report will not be as supportive as my medical expert, so this present offer maybe lowered.
my condition is actuall getting worse and i'm really worried about my future. Do you think i might be offered a better offer, more than we asked for if I pursue the case ?  before we go to Court? unfortunately, my Solicitor is not very helpful and i get a feeling he just wants to get it over with!
Thank you...