The following is direct legal advise:
Just to emphasize: At trial you can’t talk about any settlement offers, or the mediation, or your frustrations with the insurance company. I do not want to give the defense anything that could be a basis for appeal or mistrial.
The trial will actually be simply about the damages and what it is worth: the injury which did not exist before the wreck and all the problems associated with the injuries / the pain and suffering / how the injuries have affected your lives, the medical treatment and bills.