1) In your opinion/to your best guess, is changing sociosexual tendencies (omega/gamma to delta, delta to beta) something akin to homosexuality where it'll be something a person will struggle with their whole life, trying not to fall back into their old rank yet being very tempted to? Or is it something closer to 'if you're still tempted to do old rank stuff, you haven't quite left it'?Because we are shaped by our experiences, and because those experiences do not disappear simply because we have new experiences, there is always the danger of reverting to previous patterns of behavior. Sociosexuality is dynamic, situational, and relative, so sociosexual rank is neither a life sentence nor carved in stone.
2) You are of a very different temperament than I. Regardless, it may be very instructive for me to ask, in your experience how does one deal with a fear of the unknown
As far as dealing with a fear of the unknown goes, in my experience, the only way to successfully eradicate fear is to face it. When I was young, I quite reasonably shied away from contact on the soccer field. I was half the size of the defenders guarding me and I wore glasses to boot.
It took several years of heavy contact martial arts to shake that instinctive fear of contact, but directly confronting it worked very well. It worked so well that now I'm moderately notorious in our veteran's league for physically punishing defenders; it is a rare game that I don't leave two or three defenders on the ground as a result of challenging me for the ball.
Brian Billick gave the best advice anyone has ever given on confronting fear.
"When you go in the lion's den, you don't tippy-toe in. You carry a spear, you go in screaming like a banshee, you kick whatever doors in, and say, 'Where's the son of a bitch!' If you go in any other way you're gonna lose."