Most kids now seem to have a mentality that the ATAR is something that defines you for the rest of the life, trust me once you step into uni all that changes just like it changes when you go in for a job. Sure you need to show a certain degree of achievement to be considered, however I know many people holding key positions in companies that actually have minor academic achievements.
I got into the Game Changers club for EY this year and had a chance to meet some of the other kids, they were all either from Melbourne Uni or Monash (so Atars of 90+) and I can tell you now half of them even if they did try to apply wouldn't get cadetship. Firstly there were those who asked the presenter questions however were so nervous that you could barely understand them, so they would most probably crack when it came to the partner interview stage. Then afterwards when we interacted with some of the employees most people seemed to just shut off and not really interact at all with the graduates and recruiters.
What I am trying to say is that you have to really be an all rounded person and posses traits beyond the academics.
I pretty much wrote that for my own self confidence as much for the rest of you Lmao.
Best of luck to all