Type 1's are not always diagnosed in childhood.
There is no such thing as border line diabetes.
It's like saying you are almost pregnant!! You either is or you isn't.
It is also writen in all the medical books you can NOT go from 2 too 1.
As I had stated you are prob a type 1.5 which is slow onset type 1 where you start on meds while pancreas has final fling then you end up on insulin and have the same treatment as a type 1 because to all intent and purpose that is what you are.
You were prob misdiagnosed as a 2 instead of a 1.5.