Hi Ali, sorry to hear about your situation, I would be very upset about it too. I'm not in the same boat, but one of my colleagues was in a crash a few years ago while her husband was driving (turned out to be Meniere's disease causing him to lose balance) and he has lost his license, he keeps hoping to get it back but has not made it to 1 year without another attack yet. It was a horrible time for them and difficult as he works an hours drive away, however they are doing ok and have found ways round it. They were very pragmatic about the fact that the crash could have been horrible (on a dual carriageway roundabout with 3 kids in the back) but thank fully nobody was hurt and he just wouldn't trust himself to drive again. So they have found ways around it e.g. he stays with colleagues in the week, she does all the driving but they have changed their holidays to do more city breaks or travelling by train to cut down on the long drives.
Hobie's suggestion of an electric bike is a good one, or as Matt says look into bus passes and trains. For holidays have a look at seat61.com, we used it this summer to go to Italy by train, as we didn't want to drive a long way and flying is a hassle, and it was a brilliant holiday. You can get a 2Together railcard to use in this country for discounted tickets - we bought ours with Tesco Clubcard vouchers!
I know all of this is not the same as having the freedom to drive wherever and whenever you want, but hopefully you can still find stuff you can do and enjoy and just get around differently in the meantime then get your license back in a year.
Don't know why Occy Health would say carb counting was old fashioned, it's the best way to good control as far as I know. If your hospital is not very useful try doing
https://www.bertieonline.org.uk/ it's an online carb counting course. Keep a good BG diary and brush up your carb counting and things should improve. Have you read
https://www.amazon.co.uk/Diabetes-Children-Adolescents-Adults-Health/dp/1859591531 as well, it's a great book that probably taught me a lot more than the hospital! I'd recommend asking for a pump as well, hypo unawareness is one of the NICE criteria for getting a pump and I got one a year ago and it's been fab! Far fewer hypos and better HBA1c. Feel free to browse the pumping section on here and ask any questions.
Hope you're feeling a bit brighter today, take care