I may not be an RN, but I still feel I can give you sound advice from an LPN's point-of-view.
First of all, I'm not sure if I misread something, but if you have not taken the course to become a certified CNA, please do so. This is the only way you can become a CNA as well as eligible to work in any facility. Plus, most nursing schools nowadays require students to be CNA certified before they even start the program(and some are even requiring job experience as a CNA, as well).
Secondly, I believe most(if not all) states require that you work x-number of hours in a licensed facility in order to keep your CNA certification active.
Third, once you are an official CNA, do yourself the biggest favor and start working as one ASAP while you wait to begin nursing school. Even work during school, if possible. Trust me, having this job experience will only benefit you in the long run!! Why? Because I was in your shoes at one time. When I started nursing school, I was a certified CNA but had never worked as one, let alone anywhere else in the healthcare field. In fact, I thought my instructors & fellow students w/experience were tooting their own horns when they kept stressing how helpful a CNA job would be for me, my education, and my career. It didn't take long to figure out that they were right. As a CNA, no matter where you may work, you will learn many skills that will come in handy down the road. Here are some of them: taking vital signs & blood sugars(if the facility permits); learning the correct way to make a patient's bed(with & without a patient in it); assisting patients with ADLs(bathing, grooming, dressing, eating, toileting); transferring & repositioning patients(pivot transfers, using lift equipment, working with walkers/canes/gait belts/etc); learning to properly & appropriately communicate with patients & families at their greatest time of need; putting in/removing foley catheters; learning how to communicate with fellow staff members, including CNAs, RNs, Charge Nurses, etc; TEAMWORK and how important & helpful it is for everyone, staff & patients alike; basic caring for the sick &/or dying; and recognizing nonverbal signs &/or behaviors of your patient that could indicate something serious is wrong(ie: patient suddenly becomes confused, diaphoretic, dizzy, &/or SOB...all these mean something!!!).
Fourth, as a CNA, you'll also learn how to properly prioritize patient needs, develop good time management skills, and build a strong sense of self-confidence. These 3 things are very important to have when starting nursing school and will help you out immensely in clinicals and on nursing exams(including NCLEX, which is the State Board exam you take after graduating from nursing school).
Fifth, the experience of working as a CNA(regardless of where) will begin to expose you to alot of the pathophys & pharmecology stuff you'll be covering in school. Therefore, when it comes up in lectures or readings, you'll be able to connect the dots and have a better understanding of the many different diseases/disorders out there, the signs & symptoms unique to them, how they can effect the body, and medications used to treat them(ie: Type I or Type II diabetes; s/s of hypo or hyper -glycemia; circulation, BP, kidney issues, etc; insulin or PO meds).
Lastly, I just wanted to stress that as you transition into nursing student and eventually RN, please don't think you'll never have to do a "CNA skill" again. You will everyday of your nursing career to some degree!!
So, have I convinced you yet?