Check if your community college requires you to have your CNA. I start the ADN program at my community college in August and they require you to have your CNA to even apply. My school goes off of a point system, grades help, but aren't everything. My GPA is a 3.9. I work at a LTC on the weekends, so I got additional points for actually using my CNA. I would talk to the nursing adviser at your school to find out the criteria to acceptance into their nursing program. Find out the average GPA of those accepted into the program, do they require you to have your CNA?
Being a CNA is not fun work, but it gives you valuable health care experience. I have been told by many nurses and patients at my work that the best nurses were CNA's first. I have gotten to be friends with several of my nurses and they are all very willing to help me when I start nursing school and they will give me little tips here and there that will help me in my nursing career.