Was advanced from graduate Trainee to Senior Analyst in 3 months due to staff shortages. As Trainee I was shoved in a corner and basically told not to touch anything this meant I was unprepared for the Senior Analyst role I was forcefully advanced into.
Despite constantly trying to self improve and cram the 2 years of learning and experience required for the senior analyst role, the daily levels of stress and feeling of isolation caused mistakes and reduced my effectiveness in the role. Workplace morale is also terrible, everyone in the office is gloomy, even during a big win the feeling is 'ok now something is going to go wrong to balance the universe out'.
In the middle of all this NAB 'restructured' which meant firing the majority of support staff I had been building a rapport with as well a firing all of middle management including our team leader. At this point I resigned.
At NAB you either perform through being a combination of highly experienced, well connected and lucky or the grindstone turns and you are more grist for the mill.
No training, your on your own, your either a hot shot or ground to dust