It's totally up to you when you want to attend graduate school. For me, I swore when I graduated that I was never going back! I was ready to earn more money that was I was making as a CNA and start repaying my student loans. Then, I felt the need to do more than just be a bedside staff nurse. I wanted to teach my patients and educate them more about their meds, disease processes, ways to improve their quality of life, etc. Being a NP is a lot about disease prevention, health promotion, and providing high-quality cost-effective care and decreasing hospitalization expenditures. The instructors will preach this saying to you over and over! I waited to go back after I had been a critical care nurse for 3 years. Others in my NP program went directly into it from their bachelor's program. Of course, there were others who had been a nurse for 10, 15+ years and now wanted to be a NP. You can always go part-time and take some of those theory, assessment, leadership, etc. classes if you are concerned about working on your nursing skills, finances, graduate school level work, etc. However, I was able to work 2 days/week, do clinicals, and go to school full-time. My NP program at UK was set up so you attended some classes only 4 times during the semester and did a lot of "busy work" on your own. My assessment and ACNP classes met every other week. I know the program at UL has the weekend option where you go like 9-5 on Saturday only so you are able to work during the week.
I say go for it!! Take the GRE and get that awful thing out of the way if you haven't already and apply. Don't worry about just being fresh out of nursing school. Try to work some at the bedside during school and get the most out of your clinical time. You will do great! I felt too that I was a better bedside nurse while I was in NP school because I was applying what I was learning in the classroom to my patients.