I learned that it is up to me, how much the actions of others affect me. I can choose to be angry and hurt, or I can choose to let it go.

It's not always easy. Sometimes I want to be angry, to do some self-righteous foot stomping. But I figured out a while back that anger has a shelf life & after that it takes more effort to stay angry than to just let it go.
And that sometimes, when someone hurts me, it's not about me at all, just them & who they are.

I try & figure out when something is really bugging me, why it is & what do I need to learn / gain from it - I do believe that where there is discord, there is a reason, and it's usually a positive hiding there somewhere, an opportunity for growth or learning. I'm still working on seeing those opportunities I've got a way to go, but I understand a bit of where I have to go. If that makes sense.