Dude, that's horrible, I'm really sorry to hear that...A few words from someone that's been there.
15 years or so ago I did something very stupid and wound up riding into the back of a parked car. I smashed my face all to hell and bashed out about 8 teeth. When I saw my face afterwords I was convinced I was going to be disfigured for life. Within a few months, my face was pretty much back to normal. Plastic surgeons can do amazing things, and I have dental implants that replaced the teeth I bashed out, which work great. I had sutures all over my face but scarring was minimal, and the scars faded over time. I have a couple spots on my face where I can't feel anything cuz the nerves died, but from a quality-of-life perspective, I made a 100% recovery.
Of course, since it was my own fault, I never had to deal with the anger, but I've been hit (and injured) by reckless drivers on other occasions and I'd suggest that you just try not to think about it right now and concentrate on recovering. Just put it out of your mind as best you can.
Bottom line, you WON'T be disfigured, and with implants its no big deal if you lose some teeth. Stay away from mirrors til you get the sutures removed. You'll be OK.
Hang in there...
David