Options:
1. Quit while you are ahead and get out of aviation.
2. Don't do the degree/diploma unless its something other than aviation so it can be used as a backstop. As far as aviation employers are concerned its a 'nice to have' not something that will get you the job over someone else. As for the aviation degree institutions running the course they will tell you anything to get your money.
3. Look very hard at the future job prospects of where you will train as discussed above.
4. Consider not doing an Instructor course and instead go to Australia and go mustering in the outback and earn far more and get more flying hours doing that.
5. Do not do a MEIR at the end of your 200hr CPL course as your training provider would like you to. Wait until you have the proper total hours to actually be employable doing it!!
6. Change your dream of aviation. Search the internet, read about whats going on overseas, open your closed view of the WORLD of aviation, Air NZ is not the be all and end all that it is made out to be.