Live your life?

It was in The Devil Wears Prada where they said it and it has always been in my mind ever since; 'Let me know when your personal life goes up in smoke, that means its time for a promotion'. It makes me wonder, can you have a perfect balance between work and your personal life? I dont think so, ive not experienced it, one of them will always take priority, its not always a bad thing but cant be very helthy if its constant. Im saying this because ive got that kind of thing happening to me right now, i dont really have a personal life because of the amount of work i have, and i know the work will be worth it in the end, but it makes me sad that i cant have a life until ive left uni.