Goes with Incidents: 11501018, 11501025, 11500972 & 11500985 I am 100% Disabled, but work occasionally via SSA Ticket to Work program, for Amazon, using Ford Fiesta to deliver packages. 9.11.22 at 4:30AM delivering package to [XXX], on North side of road. As I backed out of driveway, now facing East, and busy road, Hiller Rd. I had only just gotten in, NO seatbelt on backing up. Switched from Reverse to Drive, foot still on brake, car took off, as if I'd stomped on accelerator, but my foot was on brake still. Hitting brakes, I flew almost to Hiller Rd., brakes not working, car speeding, steering worked. Tried to slow down, was on South side of road, on people's lawns. Going so fast, I went into ditch, then came up out of ditch! Narrowly avoided mailboxes. Last house before Hiller Rd. on my right, tried to slow down in large lot next door, didn't work. They have huge boulders along edge of grass, I not only slammed into a boulder, but they had chopped down trees too, laid them down along edge of grass with boulders. Car went UP, against gravity, ONTO one of these trees, before hitting the boulder. If you can imagine, from hood to bumper, and further out each end, I was UP, on top of a tree, the bumpers dug into it, so the 4 tires were loose on each side, front hit boulder. Hadn't put on seatbelt yet, my head slammed into steering wheel, airbags didn't deploy again, $400 cell phone screen split, cracked. I hit my head so hard, it knocked me out, I'm not sure how long, seconds