by focusing really hard, you can regain the mentality of your last non white ancestor who was a Proto-Proto-Proto-Proto-Proto-Proto-Hittite nomadic herder 45,000 years ago in Anatolia

nah You could just go back 5,000 years ago to the Proto-Indoeuropeans

https://i.redd.it/a8kbspvesw871.jpg

physical "whiteness" (in the sense of a population-level pigmentation that is lighter than Middle Eastern ethnicities) is only a few thousand years old, and happened due to agrarianism (bordering on lactovegetarianism) in a dark climate (much more need for vitamin D)

You can see the same thing in East Asia, where Chinese people are lighter skinned than Siberian tribes despite living further south--they ate less animal flesh.

However there were some hunter-gatherers in the north of Europe (mainly Scandinavia) that could be considered very close to "white" in terms of skin/eye/hair pigmentation