I have a similar situation, you can not find out if you will be accepted until you finish school and apply for liscensure.
I am 22, I have a felony on my juvenile record from when I was 16, I have been admitted to a psychiatric unit twice at 18, and was a heroin addict until I was almost 19. I am in nursing school, and told my program director before I started the program. She was not happy about it at all, I am sure because of the risk of being denied by the board of nursing.
I have been in touch with a nurse attorney and am saving money to hire her when I apply for my liscensure, and am probably going to be denied first. The Board of Nursing can not tell you anything, you must go through school and wait until you apply for liscense.
I was told that the Board will look up juvenile offenses. All in all I know that I have a good possibility of being denied but know that it is a risk that I am taking when trying to become a nurse. I only get through it with hope because I know that I am a completely different person. I will be applying in one year.