Hi, welcome to Just Answer. I will help you with your question.
To register the road you will need to explain to the land registry why you're entitled to do this, and you would do it in an application to the registry. Are you saying that you have been adversely possessing the land for 12+ years?
The next door neighbor has been possessing the land for more than 12 years
Okay - then it's likely that, as far as the land registry is concerned, they would own this if they applied for registration of it.
Are you there?