don't dwell in the past.
report cards then don't mean anything now.
you've probably developed rapidly in so many ways from your stint in Melb. Or so I think. I can see it. I think you're great =)
and it's going to be different. you're not going to be judged on grades. adults do not deem each other as inferior by comparing past report cards. because we've learnt that a person may not be as good as you in one aspect, but is really good at another aspect of work.
just like it's difficult to say one OT is better than another.
just like I've discovered that different doctors are good in different ways (and can be really sucky in some areas of work), and they are each respected for their unique self (idiosyncracies included!).