I intended to take driving lessons but had to postpone for a year because of serious illness. Nerves were awful, more so because in other areas of life I'm confident in my abilities to learn new skills fairly easily. I stressed, said on loiads of occasions that I'd wished I hadn't started, especially as I only had a weekly lesson, nobody to practice with. I've also got problems with pain that got to mne at times.
2 weeks ago I took my test and passed first time. I'm 52 years old and had never been behind the wheel before. Stop testing when you know your anxiety will be high, and just concentrate on doing the best you can.
I'm sure you'll do just fine☺