"I’m also letting go of second chances. One strike and you’re out."

This is the part that I came to criticize as well. To me, it doesn't sound like letting go at all; it sounds like holding on to a grudge.

I excommunicated a family member from my life a while ago. I thought I was protecting myself and my family, but I was really just prolonging my own pain. I have since forgiven him and cautiously started letting him back into my life in limited ways. To me, that's an example of really letting go.