How much of my reality am I responsible for?
Depends on how you look at it..
It is a flip side of the coin.. it is a paradox
If you understand that you and I are the same being/same particle.. then that is a way of looking at all of it..
But if you understand that this experience is one that is with our other selves.. where we reflect, to each other.. and interact then you understand technically your only responsible for your own reflections and reactions.. you adopt ideas that are you and in a way our also external