Australia has a lot of trouble intergrating immigrant waves. We also compared to our physical health system have a very poor mental health system.
One advantage we have is an education system where it is free(Ish) to go to Uni, low youth unemployment and relatively inclusive society if you play or worship at the altar of sport.
We are certainly not perfect and the environment and wildlife can kill you off as quickly as a road raging nutter.
We did learn from the American Consitution and the Civil War... One of our parts is that once you become part of the federation you cannot leave it. We also watch, learn and incorporate from UK, Europe and the rest of the world ideas.
We still get it wrong, can't operate a submarine or a nuclear reactor, havn't launched anyone into space or done a very good job in looking after the Aboroginal inhabitants. So I'd put us in the reject pile of apples.