What should I do?

HI...
So here goes...
I moved to the US in 1994 with my husbands job. I am a RN and had spent most of my career as a senior emergency nurse. My children were 3 and 3 months when I arrived here.After a settling period of nine months I set about the task of getting my license to work in NY.After lots of correspondence and phone calls i was eventually granted the date to take my exam. Thinking it would be a breeze i booked a quick KAPLAN course and set the test for the end........ Well I FAILED IT!!!
How could that be!!! Here I had been such a great nurse for so many years and had done all sorts of extra courses including the English National Board Accident and Emergency Course only a couple of years previously.
I was so upset I foolishly decided to forget about it put it all on hold and focus on the children and staying home.
Now her I am fourteen years later.
My daughter is going to college next fall my son is a freshman and I have two more children ages 5 and 7.
How the devil do I get back to the point of taking the exam again?
College is looming and I now need to work.
Will I have to go through the whole process of getting my transcripts from the UK or will they still be valid
I want to take a back to nursing course at the local college but they wont let me take one without a license. It a bit of a tall order but is there anyone out there who can possibly give me some guidance I would be so so grateful
Best wishes to all