I own everything, everything that happens to me, everything that goes wrong around me, I take my share of responsibility in it. Analyze what I can do to improve it, and do it.
When I think like what you mentioned I tend to lose control of my emotions, I feel angrier, I feel sadder. When I own what happens to me, I feel peace. I know almost everything can be improved. Maybe not short term, but eventually.
Coming back to the other side, I think the core of it is that thinking that stuff is happening to me makes me feel like a victim. I don't take responsibility for anything, thus it must be the fault of some external factor. I try to rationalize and assign blame. All in all, it's a much more negative experience for me.