I think you should break down your plan into shorter goals. I would concentrate in getting all the prerequisites for nursing, then your ADN, get licensed, and start working as a nurse. The BSN portion is a very doable online undertaking while you ensure nursing is the right field for you. The BSN portion provides for a broader scope of nursing. If you find nursing is really for you and want to take it to the next level, then move forward with the graduate portion. The NP's scope of practice is very different and more complex than an RN with an ADN or BSN. It will steer you more into the medical field, not an easy task and a lot more responsibilities.
Being an NP is very noble and an awesome accomplishment; however, you need to be the right person for it. You will only know that once you get through nursing school and start working with patients.
Good luck with everything! Cheers!