It will take a long time, I don't really think this is suited for you i'm sorry.
First it will take you several years to just apply and then its a 5-6 year course unless you get into a GEM course. After that 2 years of foundation, 8-10 years of training which is bound to include a PhD in the meantime. You will easily be mid late 40s before you are a neurosurgeon and at that time you will be preparing for retirement.
The better question is what do you know about neurosurgery or plastic surgeon and what it entails?