Advice about returning to school for Nursing!!

Hello Allnursing community- I need some advice . I failed out of Nursing school last year. My school required that you take the ATI exam in order to go on to the next rotation, well I took the exam 4 times and didn't make the cut. I should of graduated this March 2012, but that wasn't the case for me. Anyways, it's 2012 and I am considering going back, but don't know if I should at 46 years old. I worked so hard to get into the last program that I am so afraid to fail again. All of my work history for the past six years is in healthcare. I got laid off from my registry job I work as a CNA. I got the job, because it gave me a good foundation for nursing at the bedside. Anyways, if I do get any replying thank you for all the advice. I really need to make a decision, but any feedback would be helpful!!