Hi Sarah - glad things are improving for you both!
I learnt to drive before I even realised I had Asperger's and I was really embarrassed about how long it took, simply because my spatial awareness was awful.
It took me a few years but I passed on my second test and it's been great for my confidence and much less stressful than using crowded buses or trains to get around.
My advice is to make sure you have a calm and patient instructor - which unbelievably isn't always the case!
Good luck!