i might put it towards a stint of travelling.
I pay enough back too, but Uni was well worth it. You are too young to worry about saving it for X, Y ,Z.
Enjoy yourself at uni, it is your last horrah in childhood. Spend it on whatever youneed to give you the best time there or travelling as you have said.
Worry about the boring old stuff after uni, I certainly wouldnt do it any other way!!