Regarding painful past that comes up when you are going through interviews, the essential thing is what you can do for the people who interview you: NOW and in the future.
The past is a path to the actual PRESENT. And it could change, as we change our way to see it.
So yes, for example, there is this and that and the other. But look, this is why I can put together this exhibit in such a successful way now.
As for the rest, how to keep oneself focused, while things happen around, affecting our concentration and will?
Just by gazing in this direction, and saying, this is what matters most, I will give it my full attention.