@DeepDarkBlack im so sorry for what you are going through. Not conduct related but my husband has been at the sharp end of losing jobs and even losing a business (2 if you count one where he was a director and ended up doing all of the enormous work closing it even though he was the last director in and many had been there for decades) when circumstances conspired against him during the Construction Industry crash.
It is such a knock when this stuff happens but in the grand scheme of things health matters so so so much more. That needs to be your initial focus.
Each time we have had those knocks ironically we have ended up in a better place after. Not necessarily financially but overall as a family. We knuckled down, buckled in and made it work and that brought us closer together.
Jimmy Carr says that you won’t get a trust fund kid of good character and it is absolutely true - it is these difficult times that shape people. You will be shaped by this experience and you will recover from it.
You need to be much kinder to yourself, you are a human being, you have limits and you pushed yourself past them and it temporarily broke you.
The environment that led to that is clearly toxic, you either didn’t feel you could speak or weren’t listened to, that is not on you.
Recovering is where you need to make the real changes. You are not a failure, a situation didn’t work out for you. You are not entirely responsible for the situation not working out you were over whelmed and overloaded. Saying that you shouldn’t have broken down means that you are not recognising that another person in the same situation could easily have had the same outcome. It is not just you. You will recover.