Three year trade school done in two years

[Lemontree]

Geez, I have so much unusual stuff in my cv.

The three year trade school took me two years to finish. First, I entered five months too late into the school year due to an accident and in the end of two full years completed, I was granted to enter the exams half a year earlier for outstanding performance. So, what do I write now into the form where the questions states: Number of years successfully completed. 2 or 3 years?  Any advice here appreciated.

And one more question to the same topic: Did you write down all the schools you have been to? Due to excessive moves I was alone on four different high schools before I could finally make my exams. Would you list them all?

Thanks so much.

Lemontree