What are your first principles (rules you've developed) in your life?
People who make me feel like crap or worse off then when I encountered them consistently are written off and out of my life
Doesn't matter if its family, nobody is entitled to your attention and suffering and it does nobody any real good for you to succumb to the inevitable dysfunction it creates in your life and relationships and also material conditions.
MVP is a good tool I was just mentioning. Picked it up unknowingly from coding, still working on generalizing it to my life but its working and rightly for me
To me, having a strong opinion means I have thought about the problem space enough to understand what I believe are the important aspects and what optimizes them. Remembering to hold them weakly in the light of previously unconsidered or under appreciated arguments prevents me from becoming overly rigid.
When I make maps for ttrpgs, I've started using a tool that is, let's be honest, kinda crap. The maps I can make using it can only ever be "good enough." This is good, because it means I don't spent hours trying to make it perfect, and instead just finish prepping other things.