It's worth noting that the impact of epigenetics is almost certainly minor in comparison to plain old genetics.
https://en.wikipedia.org/wiki/Epigenetics
> Epigenetics most often denotes changes that affect gene activity and expression ...
> The standard definition of epigenetics requires these alterations to be heritable,[3][4] either in the progeny of cells or of organisms.
The most important factors in life are most likely not determined by genes.
If you have the time, watch Biology of Belief - by Bruce Lipton (full documentary). https://www.youtube.com/watch?v=jjj0xVM4x1I
Genes are just passive blueprints for proteins.
It is your social and psychological and external and internal bio-chemical "environment" that determines what genes are expressed.