Career Prospects in Neurology

Hi my name is Ramzy I’m an aspiring Neurologist. I’m wondering if someone call tell everything I need to know on how to become one.
What’s the career path?
What’s the competition ratio and how competitive is it for Neurology ST4?
Do you have to dual train in Neurology and Internal
What’s the curriculum for Neurology speciality training?
Can you sub-specialise after achieving CCT?