I think the guy overthinks too much and that causes problems. Haha
What I know is we have control over our own minds and we don't have to allow people or things to do ANYTHING we don't want to do. The biggest problem is that people do not live in the moment, in the now. They are not "present" for themselves and therefore have their minds buried in the dead past, which only brings heartache and regrets. Not the way we're supposed to live.
Every time we are not present for our own selves, we are wasting time and life. We were not meant to dwell in the past. It is dead and it is gone and it cannot be changed. But we can change our future. We must learn to live in the moment. Usually nothing in the moment is hurting us unless we have our mind again on the dead past. We're not going that way, so we need to learn to let go.
Every time we have one of these setbacks, they do tend to make us stronger, in that they help us see where we need improvement and where we need to go, so that is good. They're not there to hurt us, but to keep us on our toes, on the right track, so we can and do, become even stronger and more resilient, because God gave us, and made us, to be more resilient than we ever realized we could.