Hi,
What type of gearbox is fitted and do you normally use both feet when driving?
I have gone to a double clutch semi autonomous vehicle which stops the vehicle when I gets too close to the one infront, at city speeds.
For automatic gearboxes plant your left foot on the foot rest besides the brake pedal and keep it firmly planted there. I have a velco loop fitted over the foot rest to slip my left foot into, keeping it there. Now use the right foot only to operate both accelerator or brake as needed. When stationary take the gearbox out of drive and use the park brake to prevent rolling, retuning the right foot to the accelerator position. I tend to use the side wall or tunnel of the vehicle, LHD or RHD, to slide my foot down onto the accelerator. This way you get used to the right foot always being at the accelorator position and it becomes second nature, the right foot has no option but to stay where it is.
When the neuropathy starts to become a problem in both feet, maybe look into hand controls being fitted.
Cheers