I feel I need to clarify a misunderstanding that seems to be pervading amongst TSR users. Deciding to be an advanced nurse practitioner, or specialist nurse, isn't like deciding to be a nurse. You don't simply decide you want to be one, apply and pass an interview. They are extensions of the nursing role. Its not a stand alone thing. You don't become an advanced nurse practitioner across all of nursing. It is a way of expanding your scope of practice within your chosen area of nursing. Only when you have gained significant experience within that speciality plus or minus undertaken additional study in that area. There are very limited numbers of ANPs and only certain areas make use of them (although many areas have specialist nurses which have an enhanced role).
Whilst it is good to aspirations, it is also good to be realistic. The competition for these roles, and the training that goes along with it, is fierce and will go to the most experienced and qualified nurses, not some recently qualified nurse. If you sign up to nursing, you need to be prepared to put in the hard work as a band 5. Progression is very different to the private sector and you could be waiting years before making band 6, if you do at all. The majority of nurses will stay band 5s.