Im sorry but I couldnt resist maybe you should go and study a bit harder for your diplomia
Its good your looking to the future but try and concentrate on one thing at a time instead of jumping all over the show.Although you may find it hard finding a piloting job (especially in NZ because the industry needs to take a long look at itself) just deciding to be an engineer may not be the best option (engineering WILL take longer), either way its a long road so dont expect things to happen overnight.
Good luck
I just thort Id throw my two cents in.