Interested in Nursing but........

I'm in my last year of Highschool and really interested in becoming a Hospital Clerk. I would like to start the course as soon as possible, so I can get into the job force asap also. I would have loved to be a Nurse but I just dont have the grade in some classes to get in, and Becoming a Hospital Clerk is more reasonable for my learning needs. I am interested in becoming a Hospital Clerk becase I've been wanting to work in a hospital and we have great benefits in Canada and good pay. One question, sorting out charts can you explain to me what that is and what you do?
Is it possible to be a unit clerk in your early 20's? Thats what I'm hoping..
Yes, the local hospitals actually train Unit Clerks here and it only lasts about 3 days. I think it costs $50. I think this is the same thing as your talking about and if so, I don't think it would be too hard to become one right now. And why don't you think you can be a nurse? What kind of programs are in your area?