Hi kyliel,
Reading your situation....it sounds pretty bad.If you feel no options are available for u any further and u have tried your very best to resolve the situation through various means and it is still not working,then you might want to consider changing schools.
As the current mid-year intake is currently going on with various schools who provide nursing studies,I would suggest you get in touch with this schools and also see if u can gain credits for subjects u have completed.
A change of environment and education provider could do u go in the long run.Hope all works out well for u.
~Cheers~
AJ