My experience is I didn't need to do this. It all happened in steady progress correlated with the intensity of my practice. First I noticed I wasn't automatically reacting to an external stimulus and then I realized I actually had a choice how to respond. My neural pathways evolved and to some extent, I was a different person. There's an elegant summary in a book "Altered traits" - https://www.amazon.com/Altered-Traits-Science-Reveals-Meditation/dp/0399184384