70.3 Canberra

Hey!  I was wondering what the cycle is like in the 70.3 Canberra.  A few weeks ago, I did my first 70.3 in Port Macquarie and in 2 weeks I have Canberra.  My main concern is the ride, because in Port I found that I struggled a bit with the hills.  I did make cut off time for the bike, however, i couldn't complete the 21km of hills in the run.  I pulled out when I realised I had nearly run out of time, with about 7-8kms to go.  I am now really concerned that I am not going to be able to finish again...