Been through it, if you are can't afford to pay for the flying elsewhere then go for it! Otherwise if you have the coin spend it up north after you finish the university side of things.
As for the interview you just have to want it! Have the drive, determination, passion etc. Above all else don't lie, if they ask you how many gold balls could fit in a jumbo don't make up a random figure maybe say it depends on the type of jumbo and config but you have no idea...
Things may be a bit different to when I did it but honesty, integrity and determination I believe are what got me through it.
Good luck kid