I was rear-ended by a govt (GSA) vehicle leased to the navy (assuming Everett WA). while stopped inrush-hour traffic I5 So just north of 128th St Ever

The two cars in front of me both had to stop quickly, and so did I, but none of the 3 of us hit each other. But the GSA vehicle behind me rear-ended me left rear and pushed me into the vehicle in front of me and glanced off somehow. Then another private vehicle rear-ended me as well. I tried calling GSA and make claim, was advised it could take a long time to recover my costs. I didn't have the assets to pay for the damages to the vehicle and myself, so I asked my carrier (Farmers) to take care of it. It was a NEW 2013 Chevy Sonic, and Farmers totaled it. There is a balance due, but I have GAP coverage. But I am now missing an EXTRA 6K in extra payments I made over and above the regular loan amount. I want to recover those payments, plus medical payments, and whatever is normal for the plain fact that I was injured. I also want to recover for the last 6 days missing work. I have run out of Paid Time off. Requesting followup but