I am glad you shared your experience, it does help with recovery, not physical but emotional.
I was crippled by a drunk driver at the age of 6 the story is posted somewhere here on BYC. I am 51 now and the pain is constant, it never really goes away.
Unfortunately they do not make enough pain killers , or strong enough ones to help.
I cried when I read your story, It brought back the fears I went through as a child.
when I finally started driving at the age of 18, I never went near a highway, always stayed to the back roads even if it meant going 20 miles the long way round.
In 95 I was again in an accident, rear ended out into on coming traffic and then T boned.
again I didnt drive for years, either some one drove me, or I would walk.
Husband was getting really cranky about taking me to work every night and finally said either drive yourself ( at 11

m) or walk.
finally after calling in and telling them I would be late, I got behind the wheel. 2 hours of pep talking, chiding, crying etc I finally made it to work.
Coming home wasnt any easier.
still to this day if I see a car making even the slightest swear leftor right, coming up from behind too close, or a vehicle sitting at a cross road, I break out in a total panic.
There still is many times I will not go anywhere unless there is some one with me, Yes even after all these years I am still terrified to drive alone.
Long story short, or a moral to a story , how ever you want to view it.
Give your self time to heal emotionally, dont push yourself to "get over it" seriously it will make the fear even worse.
Work through it on a day to day basis, if today is good tomorrow might be better, if not you can only go forward and up.
I am thankfully you survived, so sorry you were injured.
Personally I believe all people who drink and drive should be publically flogged.