yeah, i'm sure you know about this but there is a whole psycho-neuro-chemical process that occurs with childbirth that has a psychedelic-like personality reset process in it. similar when you move to a new place, your brain gets more plastic and you can learn new things easier. the effect of this after the birth of my sister was very difficult for her, she had post-natal depression. the reason was that in the time since i was born, he started to turn abusive, and she was unable to integrate it.
i'm sure you won't have this issue but i'm just putting this thought into your mind so you take advantage of it - if there is habits you want to change or new things you want to do, this will be a good time to tackle them because you will be more of a blank slate with beginners mind and surprise yourself with how quickly you are able to make wanted changes to youself with your brain turning plastic.
cult leaders and manipulators look for people in these kinds of states, it is why very often in the late teens/early 20s is when people get caught in cults and develop psychological problems. the psychopath exploits this to more effectively imprint their self image onto the victim.