Question Author
Thanks. Luckily my lovely fiance (who's sick of ferrying me around and visiting me in hospital every time I come off my scooter in winter) bought me a little car for my birthday in Oct, and I took my test in that. I realised very quickly that the thing that had been holding me back was just a serious fear in other people's cars! As soon as I got behind the wheel of my own car, my driving improved in leaps and bounds.
I'm going to attempt to go to the supermarket this afternoon!