DNA, has nothing to do with psychology with brain functions including consciousness and deep consciousness.
Psychology is a thing, and metabolism is other thing,
DNA has genetic codes that conceive the aspect of the body, these codes inherited from the. Chromosomes of parents
Whereas psychology is an other system built by the conscience and deep conscience,
And this system can be rebuilt by the interference of scientific psychological methods,
DNA is like the hardware of the computer meanwhile the psychology is a the software,
Software defined by a program.
So you can program yourself as you want,
Understanding your body your brain helps so much to deal with any issue,
So your low self esteem isn't hopeless!