Many people made mistakes early on. In my first post on this last January I said that we should keep it in perspective because loads of people die every year from regular flu. There's a world of difference between making mistakes in an unprecedented situation and refusing to learn from mistakes as more information becomes available. That's why it's so annoying when Covid minimisers argue that we should not listen to the experts because some early predictions were wrong or their initial advice was changed later (while ignoring their own poor record).
The vaccination program in Australia isn't expected to commence until March. As the virus is well under control there is not the same imperative to bypass the normal drug approval processes. That means we have the luxury of being able to assess what happens in other countries. https://www.abc.net.au/news/2021-01-...ation/13066948
We have had some restrictions being re-imposed in response to recent outbreaks in some cities (albeit minor by US or European standards). There's clearly a bit of fatigue, but public acceptance seems to be holding up and there's still generally bipartisan support apart from some quibbling at the margins. The key to success seems to be creating a virtuous circle, in which administrative competence, demonstrated success, political support and public support become mutually reinforcing.