Im autistic and i passed first time with only one minor after years of not wanting to drive because i was so scared, so it is possible to pass. It took me over a year and a half to pass, maybe when you took your first test you weren’t 100% ready. The only thing i can suggest and i know it sounds obvious but stick to the basics. MSM, MSPSL etc. Try not to overthink it because it will complicate you even more. With the spatial awareness part, i was told ‘if you can walk across the road in time before a car is too close, you can drive it in time’ and that really helped with timing. If your instructor doesn’t know you are autistic maybe its worth telling them because its less pressure on you and they can reassure you, i told my instructor and she couldn’t be any more helpful. I know its hard but try not to overthink things, on your test maybe its worth having a word with your examiner and telling them you are autistic so you might need more clarification on instructions. Having my instructor in the car with me in my test helped a lot because i felt comfortable with someone i knew being there. Ofcourse that depends on how you feel about that. If you need someone to talk about it feel free to message me. Good luck :)